ask her man or potential mate several important questions, explain that to me. >> she has to find out several things if she marries a guy. not all men are born to be cheaters. look at his history of relationships, does he have a bunch of angry exes, has he fooled around before? how much guilt does he feel? did you know that men actually feel much less guilt than women? >> if you have a pencil and piece of paper, start writing this stuff down. fair warning. please continue. >> people their motive for behavior are shaped by how much guilt you feel. if you're dating a guy and he has no problem bending the rules at work even though it's going to hurt a co-worker, chances are he's not going to find a lot of compassion for you when he's cheating on you. you want him to take pieces of you into that mental compartment and not have an affair. men feel the least amount of guilt in their 40s and 50s.