i think to answer this question, one has to admit that men are basically pigs. and i say this as a man, so i know whereof i speak. men are driven by their sexual urges. they may know that they shouldn't have sex with someone they no longer care for, but they will go ahead and, possibly, regret it later. you only know this if you're a man. men are motivated, strongly, by their sex drives. i'm old, and have never met a man who refused to make love to someone for any reason. except for me, of course.