The dream does remind me though of my 40th High School reunion, where a guy (happily married) told me he'd had a crush on me in high school. I'd never had a clue - he was one of the popular kids, a good looking football player, and I was a nerd who hung out with the drama and yearbook people. I honestly don't even remember having a conversation with him back then. I was flattered.

However, the guy in my dream most definitely was not him.

DV - it sounds like it might be worth exploring if your exH is actually interested. Sounds like you realized he wasn't really committed to the marriage in the same way you were - AND that he wasn't really ready to settle down. It also sounds like he has realized what he lost. The big question for you is, how much has he really changed? And is he good for a fling but not a good bet for a long term relationship? What is HIS relationship history like since you split?