My dad sounds just like your husband, recently he went and bought a motorbike, 4 new expensive tyres and a 4 wheeler, we have a car that hardly even works and our back and front garden needs doing up a little bit. The thing is my dad didn't even tell my mum that he was going to buy all of these things, mum found out. When a relationship reaches this point the trust is gone. I dont mean to be rude, but do you know if your husband deals with drugs? Maybe this is the cause of his problems. Tell him that any money which he takes out of the bank account you will take the same amount out. It sounds like this man does have a problem. Maybe think about your marriage and where it is going, sit down and talk it through, maybe it will work out, maybe it wont.
Goodbye and Goodluck
May God Bless you
Sarah