In my opinion... you are doing GREAT! Don't beat up yourself or consume your whole day thinking about him (I know it's hard). Find some shopping or other activities to keep you busy. If a man were to tell me that he doesn't want to lose me and then turns around and says its over... that would mean another woman. It sounds like he wants his cake, milk and another snack too.(I hope not in your situation). We, here at AMHD, ARE your shoulder to cry on. We may even offer a tissue for you :)
I would say... just leave him alone... keep up with the NC. If you try to contact it may push him away more, but if you keep up the NC it may make him realize what he's missing.
Good luck to you! And remember... we are here for you 24hrs a day... :)