Hi, I think that having them in MLC in the house is very very tough. I would also say that the advice in the resource threads that those who return before they are ready almost always run again may be true.
As you know MLC takes a long long time to work through, and your h will likely be behaving badly for some time to come. Recognising this is important. It is always about what we can actually deal with. All very well saying detach, but much easier to do at a distance, imo than when they are in your house, behaving like an additional child. Very hard on you. He may well run again anyway, or he may not, There are no guarantees.
The only advice I could offer would be to go on living your life as if he may go again, without fearing it, but accepting that he is with you and a part of him wants to be. Not sure I could do it though!!
How much of the alien is still there - is he still dead eyes, and untouchable? If so I would say full MLC, but if you can hug him and look him in the eyes most of the time, he may be coming out of the tunnel in his own peculiar way.