My soon to be ex-wife racked up +$3000 in medical bills while we were still living together. We separated in July 07, the bills were in Nov 06, May and June 07. I was unaware of the bills being unpaid until I received a Motion for Contempt from the hospital's attorney for not showing up to court. In Sept 07, my stb exwife and I were sued for her unpaid medical bill in Nov 06 and a judgment was entered against the both of us. I called the hospital and found out about the remaining two bills which we are being sued for. In addition, I received a collection notice from an ambulance company for services she received. I disputed the debt and upon getting the paperwork from the company, found no mention of my name. The only place my name was listed was on the hospital admittance paperwork where my stb ex listed me as a guarantor. I never signed any paperwork.
My stb ex agreed to sign affidavits to assume all responsibility for her medical debts. The ambulance company agreed to remove my name if sent from my attorney's office. The hospital attorney, on the other hand, is refusing to acknowledge the affidavit and will not remove my name from the new lawsuit.
I am repeatedly being told that I am liable for her debt because we are/were married at the time of the debt. Is this correct? Can anyone please explain the laws and help with a defense when we have to show up for these other bills? Can I appeal the default judgment since I was unaware of the first hearing?
ps. my stb ex gave incorrect contact info on the admittance papers and this was probably the reason i was not contacted. She has a history of not paying medical bills or any other debt for that matter.

