typically, when I start dating someone new, I leave the conversations about the girls past relationships/sex life to a minimum. It's never bothered me. However, I wonder if the rules apply in the same manner, when you makeup with an old flame, specifically one that you were with for a long time. The past is the past, I know, but somehow it seems different... maybe I'm just being emotional.
If you are in a long term relationship, you break up, and you get back together, where is the line for you? Do you care about anything that happened while you were separated, and what kind of questions about there past are "off limits" to you?