The situation involves a 36-year-old man (OP) and his 34-year-old wife of eight years. The core conflict began when the OP discovered, accidentally while using his wife’s laptop, evidence that she had a brief, flirtatious affair with a coworker approximately six years prior.
When confronted, the wife immediately admitted to the affair, describing it as a brief mistake from a difficult time in their marriage and insisting it was irrelevant now. The OP, however, feels that the trust in their relationship is broken and cannot move past the long-term concealment of the event, leaving him wondering if he is wrong for being unable to let go of the past infidelity.

I found out my wife had an affair years ago, and she never told me. She says it doesn’t matter anymore, but I can’t let it go. AITAH?











According to Dr. Avery Simmons, a specialist in relationship dynamics, “The discovery of undisclosed infidelity, regardless of when it occurred, triggers a secondary betrayal. The original act damages trust, but the subsequent cover-up erodes the foundation of honesty that the partners are currently operating on.”
The OP’s reaction is highly common in situations where vital information is revealed retrospectively. While the wife frames the issue around the event six years ago (which she has processed), the OP is now reacting to two issues: the initial affair and the subsequent five-to-six-year deception. Her insistence that he move on suggests a failure to validate his current emotional experience, which is rooted in the present breach of honesty, not just the past event.
The path forward requires the wife to shift her focus from defending her past actions to supporting the OP through his current distress. Professional guidance, such as couples counseling, would be beneficial to help the OP process the discovery while establishing clearer boundaries and communication norms moving forward, ensuring that both partners acknowledge the reality of the current emotional fallout.
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The OP is currently struggling with a significant breach of trust stemming from his wife’s undisclosed past infidelity, which she maintains is irrelevant due to the time passed and its brief nature. His inability to accept her assurances highlights the deep impact that hidden history has on his current sense of security within the marriage.
The central question remains whether the OP is being unreasonable by fixating on a long-ago event that the other party has fully confessed to and moved past, or if the wife’s decision to conceal such a significant transgression for years justifies the OP’s current struggle to rebuild faith in their commitment.







