My cat & I live alone in a studio apartment. He has lived in several other places, but nowhere this small. Since living here he has grown more melancholic, and over the past two weeks he has begun to pee outside of his litter box. Obviously, I don’t want to encourage this behavior. I’ve bought him a cat backpack & he loves to go outside with me, so I also take him with me when I visit people. He has regained his playfulness, but when we get back to my apartment his depressed behavior returns. Does anyone have ideas as to what I can do? I am heavily considering adopting him a feline friend.