Is a marriage over if there is no trust?

I don't trust my husband with our money. He always controls it and I can't know what he uses it for. He now wants me to sign a loan to help his dad get out of his gambling debt. he won't listen to reason but just blames me if they lose their house and end their marriage if his mum finds out. He has told me if he could get the loan without me and without me knowing he would have done it. Also, he has to know where I am all the time but he disapperars for most of the day without telling me where he is going. He controls every aspect - even to the point where I came home and he reorganised my kitchen even though he never cooks. I can not have anything my way - he always wins in the end. I tell him i will leave but with no money or credit card or car I can't even do that. It didn't really bother me until this loan problem. I know we won't get the money back but he won't listen. He doesn't blame his afther but will blame me for his misfortunes. What should i do?