The aim of the present study is to provide a deep understanding and motivate women to establish an extramarital relationship. The study was conducted with a qualitative approach and grand theory method and data collection technique was semi-structured interview and was conducted with 17 married women in Qazvin who had experience or an extramarital relationship. In order to select the interviewees, we used the targeted sampling method, this sampling requires the use of a sequential sampling type called snowball. The results showed that women's interpretation and belief in the establishment of transnational relations emerge in areas such as: growth of social relations and change of social values, increase of leisure time and facilitation of new technologies. Factors influencing these relationships were sexual diversity, lack of sexual skills and knowledge, revenge, and the justification of extramarital affairs and the absence of a spouse. Individualism, gender bias, spousal indifference, divorce laws, a woman's inferiority in income and lack of awareness in choosing a spouse as interfering conditions, and acting on an extramarital affair lead to cravings, body management, and hesitation in later life. The consequences of such actions and reactions are an increase in hedonism and the normalization of the extramarital affair
