Ja, one day they started a fight and since then they cant even see each other

We worked with them with a dog trainer for a few weeks but it lasted for a day or two and then they were back to fighting again. And I don't know what the fight was about, there were no food, attention or toys

so it must have been a competition somehow since non of them were spayed at that time. It was just so strange that it happened so suddenly and that they don't get over it. I've noticed Joey is VERY stubborn and she doesn't let go of things easily. We also found out Joey had hip dysplasia so maybe she was in pain and that's why... She have had operations now and has recovered beautifully but they still cant get along
