J.T.
Well, most of CLarifiedMom said is correct, but I believe you are the Respondant, not the Plaintiff since you did not file the action.
TYpically a judge will try to direct the parties to reach a settlement. Most credit card companies and major lendors with do that. When I went through my divorce, my ex did not make payments on a joint account that he was supposed to. Long story short I wound up paying them. I manage to cut the debt by about 60% if I recall correctly. I guess they feelthat some money is better than none, which is what they would have gotten from him or me if I declared bankruptcy. It di dstay on my credit report as a negative for 7 years.
Good luck!