I don't get this, what's the deal?

I think some people are always looking for "the one" rather than a friend. Some people may feel that if they are not going to develop a relationship further than friendship the best thing to do is to leave it be. Maybe he really likes you and its hard for him to be around or talk to you if he knows it isn't going to work.

He probably just needs to separate himself from you so he can find someone else. He probably will not have a problem being friends with you once he has found someone else to be interested in.

Love is hard and it is especially hard when the one you have feelings for does not have the same feelings for you.

Yeah BigDaddy'sgirl has it sorted. I personally look at it this way... ( and how long do you mean always? like since birth???).. but back to what I was saying.... I wouldn't wanna hang out and be friends with a girl that has been a "failed relationship attempt" ( if that term that I just made up, makes sense). All it would do I remind me of my failure lol and I would awkward around her afterwards. Id rather just forget about it completely and move on like it never happened.. I already got enough mates who are guys... don't need every girl that has rejected me, to be my friend lol okey dokey? ;)

I think some guys are only friends with a girl because they want to get w/ her. and when they realize that they can't get with her, what's the point of being friends?

It was probably very painful to be around you all the time, especially if he wanted more and you didn't. Listen to BigDaddy's Girl.

You know what, screw him, he will only hurt you in the end , he is a d**k.

One word, EGO. Typically guys who are attracted to you don't want to be your friend even if you do. How would you feel if you really liked a guy and wanted to be with him and he said "Let's just be friends." You'd be hurt. We as females often forget that guys do in fact have feelings. They don't like to be rejected anymore than we do.