How do I repair the damage I caused to my relationship by snooping?

Hey, I commend you both for being mature enough to be able to discuss your issues without a huge argument. It took guts to admit your wrong and to admit it to him. I think, if anything, he appreciated your honesty that may create a new found respect he has for you, despite the invasion of his privacy. My advice, let it lie -- women have a tendency to obsess over things that can create a new set of problems. The only question I have is, why is he still talking to his exes in the first place? I would have a problem with that.