If both names are on the title, it is considered a joint marital asset and you should sign off on the transfer of title, as well as receive half it's worth. I wouldn't trust him about putting the entire amount in an account for his use on his home. Nope...I would want my half of it...but that's me.
Don't be surprised if he signs your name to the title. Mine did that and I got a call from the dealership as they knew me and I told them to stop the sale until I had time to review the offer, etc. My xh wasn't too happy but I wanted to make sure I got my half since it was considered marital property.
You can't trust them when they are in crisis. Don't rely on him to be honest and trustworthy.
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.