I agree with
>>5 about this. The guy you've mentioned really needs professional help if he is using suicide to accomplish what he wants. I honestly think that getting back in a relationship with him, albeit under threat, was the smartest thing to do in that situation. If you hadn't, who knows what the guy might've done to himself? You have absolutely no reason to be disgusted with yourself, and in fact the only person I found disgusting was the guy. Threatening suicide just to get back in a relationship is a selfish idea that has no chance of ever ending well. I would take this time right now to inform someone, anyone, of your situation. That way you can contact the authorities before the situation gets anymore out of hand. If you don't have the courage to do so you can have someone you trust do it for you, even if it means you have to swallow up some pride.