Can you find something that you enjoy and have him notice you doing it? Maybe if he see's this he will get the message that you can be happy without him, even if you don't want to be. He also is probably dealing with his own issues. Not an excuse for him, but an explanation that may help deflect some of the ways it may make you feel. I'm sure you've tried talking it out with him, maybe try again and find a way to support each other? Just my thoughts, hope things get better.