I shared a vet with my ex boyfriend. I had a cat and he had a dog. We would occasionally go together for whatever animal needed something. The dog became ill and my ex and the vet entered into a payment agreement for a couple thousand dollars that the dog had needed to get better. We broke up but I still went to the vet. A year and a half later I'm getting my cat's regular shots and they deny me service due to the dog's unpaid bill. Being confused and embarassed I left. I get a call from a bill collector the next day. The vet is making the assumption that my ex and I had a domestic partnership and therefore I was co-owner of the dog and should pay the past due bill. I requested verfication of the bill and clearly stated that I had no legal partnership with my ex, regardless of what the vet assumed, nor would I have ever told them that. Is there anything else I should do in this situation? I've tried to get my ex to call the vet and verify that he was the only owner of the dog, but I don't think he will. I'm just shocked that just a month ago the cat had his rabies shot and not a thing was said about the dog or any unpaid bill but all of a sudden I'm in collections now.