I don't think you answered your own question. How do you know that he isn't apologetic about the past? You divorced him, which to his mind equates with, you're done with this relationship (obviously). Why pursue you? It doesn't mean he doesn't care, but don't we give that same advice to people with walk-away spouses or ex-spouses--quit pursuing and wait until they approach you? The onus of this is entirely on you to make the first move. You can bring up the family and anger issues after you know whether he even wants to try again. But I still think you are responsible for the first move, since you are the one that wanted out bad enough to divorce.

Me

In the end, it's not the years in your life that count. It's the life in your years.
Abraham Lincoln

It is hard to fail, but it is worse never to have tried to succeed.
Theodore Roosevelt