What you have described is typical behavior of a mlcer. I packed up my xh's stuff, gave him a deadline to come pick it up and we went from there. It's difficult walking around looking at his stuff all over the place. It's like they walk out of one life into a new universe and leave everything behind.
What are you going to do about the business? Shut it down or attempt to keep it going?
I hate to say it, but your h has all of the signs of a typical mlcer who is depressed. Just remember, if you drag it out, it's going to be expensive. I did that as long as I could and it was quite expensive with the lettes and calls going back and forth with the lawyers. You may need to start thinking with your head and not your heart for your assets and finances are going up in smoke. I know you don't want this, but you've got to protect yourself financially and you can't do it if you allow your heart to rule your thinking....look at the business as a business deal and not a tie to your h....okay?
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.