Tazz behavior continues

Tazz is still not happy with the idea of me becoming attached to another dog, and I do not think he ever will. I have become very close to the other dog Prince and I think I have decided to keep Prince and not sell him. Poor Tazz this is not going to make him happy. Tazz is showing his disapproval in every way possible. When Prince tries to play with Tazz he pushes him away and runs to me.Just the other day all the dogs ran to the door as I opened it for them to go out. Tazz usually waits for the bigger dogs. This time as Prince came out the door. Tazz started to play very rough with Prince biting him in his face and ear. Prince started crying out for help and his mom and dad came to the rescue. Tazz still stood his ground by jumping in the dads face, which is Chico. I do not think this is going to get better. I think I might start taking Tazz on long walks with just me and him. Hopefully this will help the situation out, if not I will do something else because I love my Tazz A Wazzale.