Is she able to have the court add to my support payments?

I am legally divorced and unfortunately lost my job about 2 years later – I was then left with no option after consult with a trustee but to file for bankruptcy. In my separation agreement and at the time of signing I was making considerably more money and agreed to pay for a joint loan (In both of our names) – within the context of the separation agreement it states the agreement would remain in place even with a bankruptcy. Right after the separation agreement I tried to put the loan in my name the bank would not allow it. Now because of the bankruptcy the bank is making my ex-wife responsible for repayment. She is now taking me to court to have the loan added to my support payments which I cannot afford. Is this possible? Is she able to have the court add to my support payments and make me repay? I have tried to offer a settlement above my current child support within my means but she will not accept.