I feel for you guccigrlnyc. I think it really depends on who broke up with who and how serious things were. It's easy when we're feeling a moment of low self esteem to do things that are destructive to ourselves in the long run. We miss them, they show some attention, and BAM, the nasty is on. How do we feel afterwards, do we secretly long for them to realize they made a mistake over breaking up with us, or do we say I'm glad we can have sex because underneath the sweet nothings, thats all we ever had in common. Its like ice skating, if he broke up with you and it hurt(hey, sometimes it doesn't), he might as well be wearing a sign that says "thin ice".