Break up

I broke up with my boyfriend a little over a week ago(we were together for about 2 years but have already broken up before.). We both had jealousy and control issues. The problem is, I have never regretted anything more than breaking up with him. The worst part is he said that he wants us to move on. I feel like such an idiot for breaking up with him because I regret it so bad. Is this just part of the grief of losing someone so close to me? Or, did I make the biggest mistake?