Speaking of Psychology
Speaking of Psychology

Aug 26, 2026 · 31 min

Infidelity starts where relationship boundaries blur

Why people cheat—and can relationships recover, with Galena Rhoades, PhD

The episode examines how couples define betrayal across sex, secrecy, emotional intimacy, and technology—and what recovery can realistically involve.

3 key takeaways
  1. 1Infidelity depends on relationship-specific boundaries, not a single universal definition of cheating.
  2. 2Dating apps, social media, texting, and AI chatbots create new ways to cross intimate boundaries.
  3. 3Couples therapy can contain damage, process betrayal, and help partners decide whether to rebuild.

Don't miss

Rhoades considers whether emotionally intimate relationships with AI chatbots should count as cheating, exposing how technology unsettles relationship boundaries.

The brief

Galena Rhoades explains why psychologists cannot define infidelity with one universal rule: betrayal may involve sex, secrecy, emotional intimacy, or technology, depending on a couple’s boundaries.

The conversation moves from dissatisfaction, boredom, anger, and appealing alternatives to the limits of prediction; monitoring other partners may precede cheating, but no profile reliably identifies who will do it.

Dating apps, social media, texting, and AI chatbots widen the space for intimate connections, raising a difficult question: can an emotionally significant chatbot relationship count as infidelity?

Rhoades describes couples therapy as a staged response: contain the damage and manage disclosure, process the affair, then decide whether and how the relationship can move forward.

The episode’s sharpest tension is between AI’s promise as relationship advice and its limitation: a chatbot may reinforce a user’s perspective rather than challenge it.

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