I would see how he reacts to you driving to C alone. Then bring it up at C and after that do small amounts of time together in public places. Maybe meet at the mall or at a coffee shop but I would limit the time you both are alone together.
How long you keep these boundries is up to you but you must feel safe that he wont physically assult you again before you are alone with him for any length of time. As in all of this actions speak louder than words and his are speaking volumes right now.
You are putting alot of effort into this R and I hope that he is truelly sorry for his actions and seeks help for his anger but you can not do anything about him. You need to do what is best for you and that is limited contact for a while.
Take care of yourself, Go play a round of golf, try and take your mind off of this for a while you will need it after C tonight.
