I think he won't talk about hitting you because he is ashamed and I bet he does feel bad. This is going to make it very hard for him to discuss it. At the same time, I understand your need to hear it. Wanting him to sob about it may be a bit much. He may not be able to show his pain in that way.
Maybe you can do what we did -- my daughter and I sat in front of her therapist. One of us would list all the past hurts and pain inflicted by the other. The other would have to sit, face the other, listen and not say a word. Then the other would do the same. In the list, we included what has been forgiven, what will be forgiven in the future and what honestly will probably never be forgiven. Sincere apologies were said by each of us. At the end, we were both in absolute tears. However, this is not something I would recommend doing alone. It really is best with a mediator to stop the interruptions. Also, both have to agree to listen and none of it can be done in anger.
As I said I do understand your need to hear that he feels bad but I'm really not sure he's capable of doing it.
