Your response about him moving out is very good. I wouldn't have changed a thing. Continue as you have been, i.e., pleasant and friendly.
Of course, he doesn't like the new you. He can't understand why you are going on w/your life as if nothing is wrong. He wants you just as miserable as he is and you don't want to go down in that rabbit hole w/him. He is also going to do things to try to get you to revert back to your old self...don't take the bait! He wants you to cry, beg and/or plead w/him. He wants you to get angry and if you are angry, you will tell him to leave. Don't fall for the bait. If he truly wants to leave, he will need to leave on his own. In his mind, he needs a justification for walking out that door...don't give him that satisfaction.
You are doing great. The one thing that I wouldn't bring up again is that you aren't going to be Plan B. You stated it, now leave it be.
Continue moving forward and stay strong!
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.
