The following are just some of the reason that men commit adutlery:
Sexual fulfillment. The desire for a more active sex life
Pregnancy or the birth of a first child can impact a man who is accustomed to being the center of his wife’s attention. This can make husbands more vulnerable to affairs.
Not finding his mate physically attractive. if your husband married you because you were phisically attractive then you suddenly begin to gain a lot of weight, this may lead to adultery.
Unhappy or dysfunctional homelife.
Midlife crisis experiences such as physical aging, unmet career goals, or feeling unappreciated at home can make some people more vulnerable to an affair.
A desire for variety in sex
Temptation
Was drunk at the time
Was feeling horny, partner wasn't around
To satisfy sexual curiosity about a specific female
Just wanted to try something different
A belief that it's perfectly right for a man to cheat