WH, He doesn't know what he wants. Sounds to me like the letter your lawyer sent gave him food for thought. I wouldn't be surprised if he doesn't change his mind again before it's all over with. The man is bouncing off the walls emotionally.
Please take care of yourself. Try to do something special for yourself this weekend. You've had a rough week emotionally and w/filling out paperwork.
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.