I hope no one think I'm hijacking this thread, just wanted to add my thoughts. My wife and I separated about 10 months ago. I miss being in a relationship. If I found someone I wanted to be in a relationship with then I don't see any reason I couldn't be. (I faded about 4 months btw)
I don't want to play devils advocate but if you're divorced does it matter whether you or your ex is in a new relationship. Surely you're the only one getting hurt/cut up by it? I think if my wife started dating someone of what concern would it be to me? Just saying anyway :)