I had a credit card in my name that my husband at the time said he was paying. I was paying other bills. He didn't pay. He said he would "handle it". He did this by getting me sued, he and a lawyer friend of his "handled it" all right. He said he was paying again but he didn't. I took over payments in 2013. I was told the judgment was for $15,690. I starting paying monthly. Recently I divorced my husband and in the decree he was supposed to pay for the credit card. I contacted the people who had the judgment and they told me that I owed $31,000 and I had paid $10,150 already. They said that the original order gave them interest which I was never told. I had never seen the judgment, I trusted what he told me. I got a copy of the judgment and he had forged my signature on the judgment and it was notarized. The paperwork said that I appeared in court.. I never did.. I didn't know that it had gone to court. He told me that he had agreed to make payments with the cc company.

You trusted him, after he did not pay twice when he told you.

And of course there is interest on judgements and court costs and often late fees. So it can be that your monthly payments were not even enough to cover the interest and you owe more now than what you did.

If the divorce decree says he will pay. The credit card company or collection company may still come after you, and their judgement against you is still valid. But you may now sue your ex husband to repay you the money you have to pay

A divorce decree doesn't erase YOUR liability, and you must enforce the decree through the courts. As for his fraud, you have to report it and prove it to the proper authorities, which could make your collecting on his divorce default in a civil court extremely hard.