You absolutely could not have played that any better.
Wow MA, you’re incredibly strong. I think I speak for everyone on the board in congratulating you on handling that so well. Allowing your measured and sensible self respond rather than your emotions.
It’s also surprising that you were able to validate his feelings while he rips his own life and family apart.
This is a great lesson for newcomers on the importance of measured, calm responses in the face of fear.
You also expertly handled giving him responsibility for getting the divorce done.
While he claims you can keep the house and he doesn’t want to take anything, remember that feelings can change and there’s no guarantees - so you have to protect yourself. He may well engage a lawyer now, who tells him he deserves much more.
I’d go immediately and make a statutory declaration about your conversation regarding assets today, and also email a copy of as much as you can remember to a trusted friend.
You may now find he does nothing to push the divorce along. The sudden morning appearance on the doorstep may be because this trash AP has given him an ultimatum to end it with you to test his resolve. He could now bumble along for months and will only file when he has to. Also, if him and trash breakup in the near future, he definitely won’t file.