Hi! Irregardless of whether or not he has MPD, DID or whatever, this sort of abusive behaviour is completely unacceptable and you should not tolerate it. His lack of remorse could be symptomatic of so many disorders including psychopathy, etc. so it is not a suprise neither is it an excuse. He needs to see someone and even if he feels he doesn't need it he needs to be convinced that he does because of what he does to you. You do not have to put up with this crap. I would suggest that you go and speak to someone as you are a victim of domestic violence. There are no excuses, you need protection and he needs help. Stop delaying!