No idea what to do

When my ex broke up with me, I went online trying to find someone to talk to and feel better, that's when I met a guy, for simplicity Ill call him Guy. Guy went on to become my best friend. He lives in the very north U.S while I live in very south. It got to the point where he wasn't happy just being my friend and he basically said he couldn't continue to be in my life if we weren't in a relationship, so against my better judgement, I agreed. We ended up fighting and now we're friends, but he made me promise exclusivity. I care about him very much, love him even, and depend on him a lot emotionally. I got asked out by a guy I care about as well that I've been on some dates with. Now I have no idea how to tell Guy. Boyfriend knows mostly about Guy, but I dont know how to tell Guy and he refuses to be in my life at all if I'm with anyone else. I just dont know what to do. I feel like a whore and a horrible person.

Tay, you're better off with a man who doesn't manipulate you into being an exclusive and who refuses to be in your life if you're with someone else. Guy is supposedly your friend, and true friends are just that, true friends. Instead Guy has made you question yourself about your morals etc...all because you have gone on dates with someone you care about. And if it was against your better judgement (your instinct) to be in a relationship with Guy, which is why you fought, then your instinct is talking now when you know it's all ok to go out with your BF..but the control that Guy has over you is making you reluctant to tell him this. Be upfront and tell Guy, and then move on because he most certainly is not your friend let alone your best friend.

I don't want to hurt him either though. :(

It is ok for him to hurt you though, isn't it? Its ok for him to manipulate you into a relationship. Its still ok when he against your instinct and wish insists on exclusivity too. I completely agree with Manalone...you are better off without him. He was never your true friend. He was only looking for a chance for a relationship. All the emotional support he gave you was for that. If he was your true friend he wouldn't have emotionally blackmailed you saying if you want me we have to be in relationship. Love doesn't happen with force.....it has to happen naturally and magically. Why do you want to think twice for hurting such a person?