Littlestar,
Doesn't sound to me like you are having much fun there with him.
Your feeling of him punishing you is probably dead-on.
Your feeling of his friends being more important than you is probably dead on.
If he's drinking a six pack a night, good indicator of a problem.
It doesn't sound like he has alot of consideration and respect for you.
Usually you'd think when we move in with someone they shouldn't start being LESS nice to us.
I see all of these things I've mentioned as red flags.
How about turning the focus on you and asking yourself if you want this and see what you come up with for an answer?
Ngaire