The topic of overcoming the negative emotional consequences of adultery, which is always important in the context of studying the psychological aspects of marriage, has become even more relevant in the context of the war in Ukraine, as the number of adulterers has increased significantly due to the fact that numerous couples have been forced to be separated for a long time. The purpose of the study is to theoretically substantiate and empirically study the peculiarities of women’s coping strategies (coping behaviour) in a situation of infidelity. To achieve this goal, a set of methods was used, including analysis, synthesis, comparison, and generalization to clarify theoretical aspects. Online testing was also conducted and methods of qualitative and quantitative data processing were used. The study, conducted in two groups of participants, revealed significant differences between the group of women who had experienced betrayal and the group of women who had not experienced betrayal in close relationships. It was found that in the group of women who experienced betrayal, such coping behaviours as avoidance, self-control, confrontational coping, and emotions stand out significantly. In the group of women who did not experience betrayal in their close relationships, positivity and planning to solve the problem were observed. It is proposed to use a correctional and therapeutic approach to influence a woman's behaviour in a situation of betrayal, the main stages of which are to expand knowledge about stress coping strategies (coping), increase motivation to improve coping behaviour, help in understanding the peculiarities of their own behaviour and repertoire of coping strategies, their constructiveness/destructiveness in the context of crisis situations in relationships. It is recommended to conduct trainings on learning new strategies of constructive behaviour and assistance in individual planning and design of behavioural strategies for different life situations, as well as post-training support. The results obtained in the study can be used in psychological work with partners and couples who have experienced betrayal and will help strengthen the family institution