This is interesting I think. Generally, the characterization is that when a man cheats on a woman, she isn't as insulted by the physical betrayal as much as by the psychological betrayal; that her man would be emotionally close to another woman. To a man it is the opposite; more insulted by the physical betrayal. Interestingly the actual enjoyment of sex for men is probably more generated from the psychological elements rather than the physical. The having of the woman, the ego stroke. Women on the other hand potentially get a much greater physical enjoyment from the act itself (when done competently). In other words sex is better for women than men physical enjoyment wise. You'd think if women enjoy sex more than men physically they'd be out there fucking anything with a stick on it whereas it is men fucking anything with a hole.