Hey Julia.. sounds ok, may as well show a bit of friendly concern and you didnt phrase it as a quesiton, so it will probs roll off him.
What was the music thing he mentioned? Was that a bit of chit chat?
Also, you said.. "I need to find out whether his debts impact me at all legally. Gosh, I'm learning some harsh life lessons!"
.. but whats legally possible/worrisome is NOT the same as whats morally possible.. so I dont think he would make you pay for or liable for any debts, or bills he has run up since you splt. Do you have your own savings? (in other words, he hasnt blown joint savings or owt). You already agreed to split the house.
I am legally entitled to half my ex's Dads house which has 100K equity in it.. but theres no way I would pursue that!! Converseley, I am sure your ex wont make you cover things that are his moral responsibility, he sounds like a reasonable guy.