The Real 14 Reasons Why Men Cheat

 Evolution is to blame.

There's that old adage, where every man wants to sleep with as many women as possible—"spread his seed," so to speak—and every women wants to find one mate—"lock him down." We're writers, not evolutionary psychologists, and cannot possibly hope to speak about the truth of that thinking, so we'll let Shirey take it away: "There are some theories out of evolutionary psychology. The theory is that, because women only have a chance of reproduction once a month, they tend to be much more discriminating in choosing a partner. Whereas men can basically have a chance of reproduction every time they ejaculate."