Having a MLCer living at home is a nightmare at its finest. They are in your face all of the time you are at home. Your h is on the rollercoaster and the holidays aren't helping either of you. When are you leaving to visit your family? Is he still going?
Your new mentality of not caring about him and his behaviors, etc., tells me that you've dropped the rope a bit more and hopefully aren't reacting to all of his nonsense. So, what are you going to do w/this new found freedom of thinking?
As I have pointed out to many before, you will know when you've had enough. I hope and pray that the new year will be a far better one for you and your family.