Some couples arrive in therapy holding what looks like an impossible problem: a betrayal that shattered the shared reality of their relationship. Research on relationship satisfaction consistently shows that recovery is possible for many couples — yet the path is rarely straight. Dr Sarah Mitchell, Licensed Marriage and Family Therapist and EFT Certified Trainer based in New York, has spent twenty years helping couples navigate exactly this territory. She is the author of The Trust Repair Manual and has trained therapists across three continents in attachment-focused approaches to betrayal recovery. She sat down with ISSPR.org to explain what actually happens when trust breaks — and what the research shows about putting it back together.
Dr Mitchell, let’s start with the fundamentals. When trust is broken in a relationship, what is actually happening neurologically and psychologically?
What people experience as “betrayal” maps onto something quite specific in terms of how our nervous systems respond. The brain processes social pain — the pain of rejection, exclusion, or being lied to by someone we trusted — through many of the same neural pathways as physical pain. Research by Naomi Eisenberger at UCLA using fMRI has shown that the experience of social rejection activates the dorsal anterior cingulate cortex and the anterior insula — the same regions that light up when you break an arm.
But betrayal from a romantic partner is a particular kind of social pain because of the attachment dimension. When we are deeply attached to someone, they become part of our regulation system. We rely on them — often unconsciously — to help us feel safe, soothed, and anchored in the world. When that person is also the source of the rupture, it creates a neurological paradox: the threat activates our attachment system, which drives us toward our secure base, which is also the source of the threat. This is what Sue Johnson calls an “attachment injury” — a wound that disrupts the fundamental safety of the bond.
Psychologically, betrayal typically triggers symptoms that look very similar to post-traumatic stress: intrusive thoughts, hypervigilance, flashbacks, emotional flooding, numbing, avoidance. The betrayed partner is not “overreacting.” They are experiencing something that, to their nervous system, qualifies as a genuine threat to survival.
People tend to think of betrayal primarily as infidelity. But are there different kinds of betrayal, and do they hit differently?
This is a question that comes up constantly in my clinical work, and the research is genuinely interesting here. John Gottman has written about “trust” as a multidimensional construct — not just sexual fidelity but emotional reliability, financial honesty, confidentiality within the relationship, and what he calls “turning toward” behaviors, the small daily acts of attention and responsiveness that accumulate into felt security. Rebuilding couple communication is often one of the first recovery milestones, precisely because trust depends on the quality of daily exchanges.
Infidelity is the betrayal that gets the most cultural attention, but in my experience, financial betrayal — hidden debts, secret accounts, significant deception about money — can be equally or sometimes more destabilizing. And emotional infidelity — an intimate emotional relationship with someone else that was hidden from the partner — often leaves people feeling that the invasion was even more profound than a sexual one, because it involved the sharing of interiority that the betrayed partner thought was theirs alone.
What the different forms have in common is the discovery of a hidden reality. The partner thought they were living in one world; they discover they were living in another. That epistemological rupture — “I didn’t know what was true” — is in some ways the deepest damage, because it retrospectively contaminates memory itself.
What are the stages couples typically go through after a betrayal is disclosed?
I am careful with the word “stages” because it implies a linear process, and betrayal recovery is anything but linear. But there are phases that research and clinical work consistently identify.
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The first phase is what I call the crisis and disclosure phase. In the immediate aftermath, both partners are often in shock — the betrayed partner obviously, but also, in many cases, the one who betrayed. The pressure of the secret lifting produces its own kind of collapse. This phase is characterized by high emotional volatility, partial truths (the disclosure is rarely complete in the first conversation), and crisis decision-making that is usually premature.
The second phase is processing and grieving. The betrayed partner needs to grieve — not just the act, but the relationship they thought they had, the version of their partner they believed in, the future they had been planning. This grief is not a detour from recovery; it is recovery. The betraying partner often makes the mistake of wanting to move past this phase before it is complete.
The third phase, which can come months or even years later, involves meaning-making and reconstruction. The couple — if they choose to stay together — begins to understand what created the conditions for the betrayal. Not to excuse it, but to comprehend it. This is where the relationship either rebuilds on more honest foundations or the partners discover that the honest foundations reveal fundamental incompatibilities.
The partner who betrayed often experiences intense shame. How does that affect the healing process?
Shame is one of the most clinically significant variables in betrayal recovery, and it is often the hidden saboteur of the process. Brené Brown’s research makes a useful distinction here: guilt says “I did something bad,” while shame says “I am bad.” Guilt motivates repair; shame motivates concealment and avoidance.
None of these responses give the betrayed partner what they actually need: genuine acknowledgment of the impact, accountability without defensiveness, and the experience of having their pain truly received. The therapeutic work involves helping the betraying partner move from shame — which is self-focused — to empathy, which requires turning toward the other’s pain rather than away from it.
I often tell the betraying partners in my practice: “Your shame is about you. What your partner needs is for this to be about them.” That shift is often the turning point.
What does the research actually show about couples who successfully rebuild trust after betrayal?
The research is more optimistic than most people expect — partly because our cultural narrative around betrayal is dominated by the idea that it is categorically irreparable. The data tells a more nuanced story.
Studies on infidelity recovery — including work by Frank Pittman, Don-David Lusterman, and more recently by Kristina Gordon and colleagues — consistently find that many couples not only survive betrayal but report that the experience, while devastating, eventually led to a more honest and intentionally constructed relationship than the one they had before. The key predictor is not the severity of the betrayal itself but the quality of the recovery process.
Three factors consistently predict successful recovery in the research: the betraying partner’s genuine, sustained accountability — not a one-time apology but an ongoing willingness to answer questions, tolerate the partner’s grief, and demonstrate changed behavior over time; the betrayed partner’s capacity to eventually move toward forgiveness — which does not mean forgetting or excusing, but releasing the attachment injury from the center of their identity; and the couple’s ability to construct a shared understanding of what happened and why, which involves honest conversation about what was missing or broken in the relationship prior to the betrayal.
That last point is often misunderstood. Exploring what led to the betrayal is not about assigning blame to the betrayed partner. It is about both partners developing a coherent narrative that helps them understand what they were not seeing, and what they want to build differently.
The couples who rebuild successfully are not the ones who pretend the betrayal didn't happen. They are the ones who use it as an unwelcome but ultimately truthful mirror — a mirror that shows them who they were, what they avoided, and who they want to become.
— Dr Sarah Mitchell, The Trust Repair ManualYou use Emotionally Focused Therapy with betrayal cases. How does EFT approach this specifically?
EFT was developed by Sue Johnson and Leslie Greenberg in the 1980s, and it is grounded in attachment theory. Johnson’s conceptual contribution to betrayal recovery is particularly important: she frames betrayal as an “attachment injury” rather than a moral failing or an interpersonal grievance. That reframe changes everything about how you approach the therapy.
An attachment injury is a moment when the attachment bond was so profoundly violated that it cannot be metabolized by the normal couple conflict-repair cycle. The pain keeps returning — not because the betrayed partner is choosing to hold a grudge, but because the nervous system has registered an unprocessed threat that was never adequately acknowledged.
EFT’s approach to attachment injuries — which people with anxious attachment styles often experience with particular intensity — involves a specific process that Johnson and colleagues have studied extensively. The betrayed partner is helped to express the depth of the injury in a way that the other partner can actually receive — not the anger (which is protective) but the vulnerability beneath it: the terror, the grief, the shattered sense of self. The betraying partner, in turn, is supported in genuinely encountering that pain without becoming defensive or disappearing into shame — avoiding exactly the Four Horsemen that Gottman identifies as the most corrosive patterns in couple conflict. This creates what Johnson calls a “forgiveness event” — not a verbal declaration of forgiveness but an emotional experience of being truly seen in one’s pain and genuinely held.
The research on EFT in betrayal contexts is encouraging. Studies consistently show 70-73% of couples moving out of clinical distress. More relevant to betrayal specifically, Johnson’s team found that when the attachment injury was successfully processed in session, the couple’s recovery trajectory changed dramatically. The intrusive thoughts diminished. The hypervigilance softened. The relationship began to feel safe in a new way.
Are there red flags that indicate a couple genuinely cannot recover from betrayal?
Yes, and I think it is important to name them clearly rather than holding onto the idea that every relationship can survive everything with enough work.
The clearest red flag is continued deception. If the betraying partner is still in contact with the affair partner, still managing hidden accounts, still lying about what happened — the recovery process cannot begin. There is no foundation to build on. Some couples spend years in “recovery” that is actually a protracted experience of ongoing betrayal, and the damage done to the betrayed partner over that time is severe.
A third consideration is fundamental incompatibility revealed by the betrayal. Sometimes the process of excavating what led to the betrayal reveals that one or both partners have been in a relationship that did not fit them for years. The betrayal was, in a painful sense, a symptom of a mismatch rather than a violation within an otherwise sound connection. In those cases, the most honest recovery is individual — understanding oneself, grieving the relationship, and moving forward with more clarity.
Finally, safety concerns. Any situation involving coercive control, emotional abuse, or physical danger requires a different framework entirely. Standard couples therapy, including EFT, is contraindicated in genuinely abusive relationships.
Something that is often overlooked: what about self-trust? Betrayal doesn’t just break trust in the partner — it breaks trust in your own perception.
You have identified something that I consider one of the most important and under-discussed dimensions of betrayal recovery. When someone we love has been deceiving us — sometimes for months or years — we are forced to confront a disturbing question: how did I not know?
This question, which seems like a reasonable attempt to understand, can become deeply corrosive. It generates self-doubt that extends far beyond the relationship: “If I missed this, what else am I missing? Can I trust my own perceptions at all?” The gaslighting that often accompanies betrayal — intentional or not — amplifies this doubt. The betrayed partner has often been told that their concerns were excessive, that their intuition was wrong, that they were “too sensitive.”
Rebuilding self-trust is a crucial part of individual recovery, whether the couple stays together or not. It involves revisiting the period before disclosure with clarity rather than self-blame: often, people realize they did sense that something was wrong. Understanding your attachment theory patterns can provide a helpful framework here — secure attachment is associated with greater trust in one’s own perceptions. They had moments of intuition that they suppressed, dismissed, or were talked out of by the betraying partner. Honoring those moments — “My perception was working, I was just told not to trust it” — is an important act of restoration.
Individual therapy, in parallel with or instead of couple therapy, is often essential for this work. The goal is not to become hyper-vigilant in future relationships but to rebuild access to one’s own perception as a trustworthy guide.
Practical question: if a couple is in the immediate aftermath of a betrayal coming to light, what are their first practical steps?
I always tell couples that the immediate aftermath is not the time for major decisions. Do not decide to divorce in the first week. Do not decide to renew your vows in the first week. The nervous system is not capable of making sound long-term decisions from within an acute crisis state.
The practical first steps look like this:
Stop the bleeding first. Any ongoing deception needs to end immediately. If there is still contact with a third party, that contact needs to stop — not gradually, but now. This is non-negotiable as a starting condition.
Create a temporary structure for disclosure. The betraying partner should answer questions, but not in marathon sessions that last until three in the morning and leave both partners completely dysregulated. Structured, time-limited conversations — ideally with a therapist present — are more productive than unbounded interrogation.
Find individual support for both partners. The betrayed partner needs a space to process that is not dependent on the betraying partner’s capacity to hold it. A therapist, a trusted friend, a support group. The betraying partner also needs support — ideally not from the people in the couple’s shared social network. Resources on managing the emotional and psychological aftermath can be found on platforms like Ma Santé Mes Soins.
Defer the “should we stay together” question. Most couples decide to stay or leave within weeks. The research suggests that the couples who take longer to make this decision — who commit to a defined period of working on recovery before deciding — make better decisions and experience better outcomes either way. During this period, actively rebuilding the micro-habits of connection described in our article on 15 evidence-based ways to improve relationship satisfaction can provide structure when the relationship’s larger trajectory remains uncertain.
Seek couple therapy with someone trained in betrayal recovery. This is not standard couple communication work. The attachment injury dimension requires specific clinical competence. Ask prospective therapists directly whether they have training in betrayal recovery and what model they use. More resources on these themes can be found in our thematic section Communication.
Recovery from betrayal is not a return to what the relationship was before. What was before is gone. What becomes possible — with committed work and appropriate support — is something that could not have been built without the reckoning that the betrayal forced. That is not a consolation. It is what the research consistently shows.
Dr Sarah Mitchell, LMFT, is an EFT Certified Trainer and the author of The Trust Repair Manual (Harbour & Row, 2024). She maintains a private practice in New York City and trains therapists internationally in attachment-focused approaches to couple recovery. Interview conducted by the ISSPR.org editorial team.