When I was younger and a woman broke up with me, I went with a scorched earth policy. Made sure that relationship was dead and never coming back to life. I would say whatever harsh or cruel things needed to be said to make sure it was over, and to hell with "let's be friends." Until one day I had a relationship that just faded. We never really broke up, we just stopped calling each other, so there was no scorched earth between us. We bounced back together a couple of times, and talked on the phone once every few months in between, but the relationship never really started up again either. Since then, I've had a couple of long-term relationships where the scorched earth policy would have been a good idea, so I could have cut my losses and fully moved on, saving lots of time and even money.
abn25, from what I recall of your other posts, I think that you should go scorched earth on this guy. Verbally unload on him about the pain he put you through, and really tell him off. And then cut off contact. Not as a No Contact reverse psychology thing, just move on and forget him, because there are better guys out there.
Good decisions come from experience. Experience comes from bad decisions.