its not a stereotype my friend.
do you know what a stereotype is?
men are generally more likely able to compartmentalize sex and intimate connections. for many men, sex is sex, and relationships are relationships, and the two do not necessarily overlap. sooooo a man who casually cheats may do so without feeling a significant degree of emotional connection to a mistress, while a woman who cheats could see things differently, with sex and emotional connection intermingled in ways that make compartmentalization more difficult.