I need help asking some guy to back off?

Just keep doing what your doing. guys are like that. I've had plenty of experiences where guys just refuse to get the hint. thats why they say guys are very persistent. they will not let go unless you become mean and say "get lose, you annoy me, leave me alone!" and then thats why guys have the nerve to complain that girls are mean. but sometimes it gets exhausting waiting around and being nice when all you want is to just be left alone and go your separate ways. if you meet him at school, walk a different way, take a different route to cles. ask the teacher to sit in another seat. be very very brief when you talk to him. he's just going to have to get the hint the hard way.