10 facts about cheating all couples need to know

Straight Men Are More Distressed By Sexual Infidelity; Straight Women Are More Distressed By Emotional Infidelity

Research published in the journal Evolutionary Psychology found that most heterosexual men would be irked if their girlfs were having sex with someone else, but were not in love with them. Women felt the opposite way: they’d be sadder if their boyf had fallen in love, but not actually gone there.