Abstract

The aim was to detect the causes that lead more often to men and women to present the behavior of infidelity. To do this, it worked with a nonrandom sample of intentional type, consisting of 75 couples married and 75 couples in a dating relationship, residents of Toluca city, on condition of having committed an infidelity to their own partner. After obtaining the consent of each participant, applications were held individually at the Universidad Autónoma del Estado de México. The results show that infidelity had its origin in the lack. That is, in the absence of some satisfactions that they do not get with that couple. Also found that men committed an infidelity because they were feeling bored, uncomfortable, by a sexual need, for lack of variety and because they were confused in the relationship, compared with women who did it because they felt alone and misunderstood in the relationship. It was interesting to find that people who returned with the couple to whom they were infidel, they argued their decision because they found stability and love, that supposedly tried to get into the relationship of infidelity.