ABSTRACT
In this international mixed-methods study, we analyzed data from 5233 individuals who identified as either the involved partner or uninvolved partner in a romantic relationship affected by infidelity. Participants completed an international survey exploring personal and therapeutic experiences following an affair. This study builds on existing literature by examining factors that support or hinder recovery, with particular attention to therapy effectiveness, therapist behaviors, and the impact of affair discovery. Quantitative data captured descriptive trends across relational and individual domains, while qualitative responses provided deeper insight into client-identified needs, barriers, and long-term outcomes. In this article, we (a) present key findings from this large-scale mixed-methods survey, (b) identify implications for clinical work with couples and individuals navigating infidelity, and (c) discuss critical gaps in training and treatment, limitations of current therapeutic approaches, and the need for greater integration of client perspectives in future research.