1. It isn’t bad if you don’t want to stay with him. It’s actually quite strong of you as a person, because you know what you’re able to handle. If you know you can’t handle a long distance relationship, then you don’t have to try and put yourself through it. Long distance relationships are not for everyone, and there’s nothing wrong with not wanting to get into one.
2. Talk to him about it and straight up ask him yourself. Playing games like getting your friends to ask is not attractive. If he likes you, he wants to talk to you about it, not your friend. Also, facebook means nothing. Don’t judge anything based on facebook.
3. It’s really sad when this happens. Your first love is a big part of you and getting out of that relationship is already very difficult without people acting so immaturely. I can’t tell you why he is acting that way, because I don’t know, but I think it’s best if you stop talking to him entirely. He obviously doesn’t want to contribute anything but negativity to your life, and you definitely do not need that. You deserve much better. You need to start moving on from him.