> I strongly suspect the ladies man, statistically, is more likely to cheat during marriage.

The weird thing is that the cheaters I know of are all guys with weak game. It's the opposite of what common sense would suggest, and I'm not sure of the mechanism, other than what I proposed. Perhaps another way to say it is that if you've had enough, you don't think it's worth the risk. I mean to be quite honest, it often isn't even worth the bother when you're a free man.