I kinda agree to some of the 'let sleeping dogs lie' theories, but sometimes, it's different. In my case, I let him go the first time, because we were at different points in our lives. I was 21, just out of college. He was a little bit older, settled in his profession (where he still was when we got back together.) Ours was more a case of bad timing. The second time around, I was settled in my career, had a life of my own, and was ready and willing to share it.