I've recently moved in with my boyfriend, and he's great, but he came with a very problematic Pomeranian. Right now the dog is living at his parents house, because it cannot be alone. His dad is home 24/7 with the dog, and there's also another dog there to keep him company, and he's lived in this situation for almost his whole life. The SECOND you start putting on shoes or grabbing keys he gets anxious, jumping and running around etc... then once you leave and close the door he barks and cries instantly. I've been closing the door and telling him to be quiet (he knows what that means), then counting to 15 or so and letting him out to give him a treat for being good. I also take him for walks at least once a day, and he has toys to play with. Is there anything else I can do?