I met a guy thru facebook, he knows a friend of mine. We started talking and he seemed nice. Then, after a few weeks he began acting strange, saying he loves me and he wants to live together. (We haven't met in person yet.) I would tell him it's too soon to think about stuff like that and he would flip out. I tried to break things off w/ him but he says he will kill himself if I don't want to be with him. He told me he's been cutting himself and that he even carved my name in his arm. What should I do? I don't want to talk to him anymore, but I'm afraid of what he might do.