Live your life as best you can. Try to look at your h as a roommate and someone who is having mood swings. He's going to try to bait you just to get a reaction out of you to justify the way he's feeling.
As for leaving, unless it really gets to you, I wouldn't ask him to leave. If he wants to leave, he would go under his own steam. If you were to ask him to leave, he would tell everyone that you put him out and it would make you look like the bad person. Mlcers do not like to look bad in the eyes of others...so they push, they bait and the provoke until you open the door and shove them out or they can't take it anymore themselves.
No...this man needs to leave on his own and if he baits you too much and catches you wrong, whatever you say will be enough to encourage him to leave. Walk away and do not engage in his baiting. Smile, be civil, but live your life for you at the moment.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
