HELP!

Hmmm, this is a tricky one. Somehow I don't think a guy can be all over someone one minute, then get bored of them the next. I honestly couldn't say if he still likes you or not, because I don't know the whole situation, but I would recommend talking to him about it. It might not be that he's bored of you, maybe there's just something going on at home or with friends or something and he just feels that he needs to it out. Or perhaps he's just not sure how you feel about him and doesn't want to push his luck with you. Whatever it is, the best way is just to be there for him, and encourage him, or reassure him of how you feel if that's what he needs. If it turns out that he is bored of you, then that isn't your problem, so don't stress about it. Just go find another guy who'll love you forever, not just 3 weeks. Good Luck!

Well, as a guy, I can tell you for a fact that something might be bothering him that he isn't sharing with you. He could be afraid or insecure about something, which he finds hard maybe, to share with you. Try and speak to him and open up some stuff about yourself to him as well, once he is comfortable, he would open up slowly to you as well, that way he would be able to find comfort in you with regards to whatever is bothering him.

Then go on to explain that no matter how hard things are, as long as you and him have each other, you can always overcome it together. I doubt that he doesn't love you, I'm sure he does, but I sense that something is preventing him from giving you his all...