Oh hun...I don't know whether to say I'm sorry or congratulations. Obviously, he is where he needs to be at this time. It's just such a shame that you and your husband can't come to an agreement regarding your son. In my mind, you are right of course. Your home isn't the best option for him and shouldn't really be an option at all. Maybe you could see if one of the doctors could talk to your husband and explain some better options. Someone needs to convince him that enabling your son is not helping him and is, in fact, hurting him.
Hang in there and please, keep us posted on how YOU are doing.