Thanks for your support. My instincts are telling me to almost treat him like I would if his daughter or parent was ill. I know that's a bit extreme, but I just mean that if I were to back off now (ie turn the phone off and wait to return his calls) that it would not help us be close. But it's REALLY hard to tell when to do which, sometimes.
Your comment really struck me about his pain. Seems obvious, but I was so wrapped up in how i feel, I didn't think of it so plainly. It's easy to get wrapped up in frustration thinking he's being selfish and leading me along, but really, he doesn't want this pain, either. Yes, it's up to him to fix it for himself, but if I were him I'd probably be in the same quicksand.