It always goes back to the money. The money is gone, he has an expensive habit to maintain, and I wouldn't believe a word he says. Addict lie, that is part of their disease.
I would open an account in my name only and start stashing some money before you are in a hole that you cannot dig yourself out of.
If you haven't attended Naranon meetings I would suggest that you do so. Also read all the stickies at the top of this forum and others posts.
Your circumstances are not unusual, he appears to be a garden variety addict.
Start working on you, keep posting, we are here for you.
My best...Dolly