Why do guys have more of a guilty conscience than Females?

Then how come when guys sleep around they're hero's but when girls do they are called slu*s?? The inequality goes both ways. I guess its more generalized for the guy to cheat and the girl to write a heart broken song about it than for a guy to whine about it... oh but the girl you spoke to was definitely in the wrong, that's no excuse for cheating.. I have cheated and I am entirely to blame for my actions