I understand that you want to help your boyfriend; you two have had a close relationship for several years. But at the same time, i'm worried about you. He's abusing you by telling you your opinions dont matter and that your attraction to him isn't enough for him to feel good about himself. As low as his self esteem is, this can't be helping yours any. I agree he does need help; and yet you can bring a horse to water but not make him drink. Meaning, he has a will of his own, and whether or not he actually gets the help he needs is out of your hands. I'm not sure how old you are, but you might not be able to do anything to help him, simply because of his age. Maybe he'd be willing to go to a therapist if you went with him, or at the very least you could see a therapist yourself to get help dealing with him. You've probably tried this, but in case you havent, try talking to him about everything when he's calm. Sit right in front of him and hold hands, without letting go, have the discussion. It's harder for someone to get mad at you when you're holding their hand. I hope some of this helps you, but remember to take care of yourself first.

Good luck,
Ro