Re: what if he's sick?...
you say "Honey, I don't think we should see each other anymore."
If he didn't mind losing all his close good friends to his irrational behavior, what makes you think he would mind losing you? I can promise you if you challenge him and suggest that he needs help, he will turn on you. He wants you living inside his sick world, and you are becoming sick as a result of lliving in that world. You are losing your ability to trust your own judgment, and being all too eager to substitute his judgment for your own. Man, why do we women do that??
But you still know what's real and what's right. Cling to that before you lose it forever, or at least before it will take years for you to get it back. He won't change for his friends, he won't change for you, and you will only continue to get sicker as long as you stay with him.