GG, I'm sorry to read that your Thanksgiving didn't go well. I do hope that the Big Band Swing Dance Formal Gala was a huge success and that you had a great time. You needed this to help recapture some of your PMA.
As for your h and his moving things back into the basement, it reminds me so much of other posters who had spouses do things very similar to this many years ago. I'll be sitting on the sidelines waiting to see what else you've discovered that has found its way back home via the basement.
Please take care of yourself.
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.