Betrayal: When Dealbreakers Happen

A Blog by Paula Gurnett C.C.C.

For many people in committed relationships, cheating is the ultimate dealbreaker. It represents a profound breach of trust and often shatters the emotional safety that a partnership depends on. When infidelity occurs, couples often feel as though the relationship they knew has collapsed overnight.

Yet from a Gottman perspective, the question after betrayal is not only “Should we stay together?” but also “What would true repair actually require?”

Whether a couple chooses to rebuild or separate, the path forward requires intentional healing. Moving forward after infidelity is not about quickly “getting over it.” It is about understanding the injury, rebuilding trust, and deciding—consciously—what kind of relationship each partner wants moving forward.

Understanding Betrayal as an Attachment Injury

In the Gottman Method, infidelity is viewed as a profound betrayal of trust and emotional safety. Trust in relationships develops through small, everyday moments where partners turn toward each other instead of away. These moments build a sense of reliability and connection.

Cheating ruptures that foundation. The injured partner often experiences intense feelings of shock, grief, anger, and insecurity. Meanwhile, the partner who cheated may feel shame, defensiveness, or fear of losing the relationship.

Recognizing this injury is an essential first step. Repair cannot begin until the harm is acknowledged fully and sincerely.

The Gottman Three-Phase Process of Healing After Infidelity

Research-informed Gottman therapy outlines three essential phases for couples attempting to recover from betrayal: Atone, Attune, and Attach.

1. Atone: Taking Responsibility for the Betrayal

Healing begins when the partner who cheated accepts full responsibility for the breach of trust. This includes:

Honest disclosure of what happened
Genuine remorse and empathy for the injured partner’s pain
Willingness to answer questions without defensiveness

The injured partner often needs to revisit the story of the betrayal multiple times in order to process what happened. While this can be uncomfortable, openness and patience from the offending partner are essential to rebuilding trust.

Without accountability, healing stalls.

2. Attune: Rebuilding Emotional Understanding

Once the betrayal has been acknowledged, couples begin the work of emotional reconnection. This phase focuses on understanding each partner’s inner world.

Partners learn to:

Listen without interrupting or defending
Express needs and emotions more clearly
Identify patterns of disconnection that existed before the betrayal

Importantly, exploring relationship vulnerabilities is never about blaming the injured partner for the affair. Rather, it helps couples understand how emotional distance, unmet needs, or conflict avoidance may have shaped the relationship environment.

Attunement rebuilds the emotional bridge that infidelity damaged, which allows an intentional relationship redesign.

3. Attach: Creating a New Relationship

The final phase involves intentionally creating a new relationship rather than trying to return to the old one.

Couples work on:

Establishing new boundaries and agreements
Rebuilding trust through consistent behaviour
Strengthening friendship and emotional intimacy

In the Gottman framework, trust is rebuilt through repeated moments where partners demonstrate reliability, honesty, and responsiveness.

The goal is not simply surviving the betrayal—but creating a relationship that is more transparent, emotionally connected, and resilient.

When the Dealbreaker Still Means the Relationship Ends

Even with repair efforts, some individuals ultimately decide that infidelity remains a non-negotiable boundary. From a therapeutic standpoint, this decision can be healthy and empowering.

Ending the relationship does not mean the healing work stops. Processing the betrayal, understanding relationship patterns, and rebuilding personal trust are all part of moving forward.

The Gottman perspective still applies here: reflecting on how trust, communication, and emotional connection function in relationships can help individuals form healthier partnerships in the future.

Moving Forward With Clarity

Infidelity forces couples to confront difficult questions about commitment, trust, and emotional safety. While the experience can be deeply painful, it can also become a moment of profound clarity.

Some couples discover that with accountability, empathy, and intentional repair, they can rebuild their relationship in meaningful ways. Others recognize that honouring their boundaries requires letting the relationship go.

Both paths require courage.

What matters most is that the decision is made thoughtfully—guided by honesty, emotional awareness, and respect for one’s own needs and values.

Because even when a dealbreaker occurs, healing and growth are still possible.

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"CoupleStrong" is a term used to describe a couple who share a strong and supportive bond with each other. They face challenges and obstacles together and are able to overcome them as a team. They communicate openly and honestly and are committed to each other's growth and well-being. They have a deep understanding and respect for each other's individuality, while also cherishing their shared experiences and building a life together. A couple who is "CoupleStrong" is able to weather the ups and downs of life with grace and resilience, and their love and connection only grows stronger with time.