i know... how you feel.... well, sort of. when i was in seventh grade this little sixth grader came up to me, saying i was his first love. i thought, oh, okay, sorry but i don't feel that way about you (didn't even know his name). i thought he got the hint and then he was walking me to class and trying to walk me home... he actually said, "i tried to draw you, but i couldn't get your hair right because it's too perfect". sounds cute, but it was kinda creepy.
>>5 telling someone to back off and that youre not interested doesn't work as much as you think and hope it will.
i say, you should confront him, but also make sure it's through his head, your friends heads, and anyone else who may be involved that you do not want him there (try saying it in a nicer way though) X3