In this work, we study the case of unexpected homosexual adultery in heterosexuals cou-ples. Infidelity does not necessarily lead to the breakdown of the link, can represent a violation of implicit or explicit agreements that had characterized the relationship but also an evoulition. In the case of homosexual adultery, the partners find themselves not only dealing with the in-fidelity, but with managing the implications of a homosexual relationship inside the couple with respect to their children, parents, family, and social context. The couple’s ideas about homosexuality are an important element in dealing with such kind of infidelity. In this work, we illustrate how the issue of homosexuality has been a complex one for psychoanalytic theo-ry, an observation that allows one to understand the mystification of the heterosexual couple who faces homosexual adultery.
Keywords: Couple, betrayal, homosexuality, heterosexuality, disorientation, psychoanalysis.