It has to stop

All right here it is…
PROBLEM: there’s a boy a grade lower then me that I knew 2 years ago at tennis camp. Ever since last year he’s remembered me and tends to keep following me EVERY time I see him. He doesn’t take a hint even when I’m obviously trying to ignore him, and all he ever wants to take about is Star Wars. Which I mean, I like the movies but he just is obsessed with them! He really thinks I have NO life besides reading, watching, and obsessing over everything SW. how do I tell him to step off and stop following me without being a total Bitch?

You could say to him that you think he's an okay kid but he's making you feel like you are being overwhelmed with way too much attention when he follows you around. Then tell him that not everyone has the same interests and you don't share any of his interest in SW so he'd be much better off to find other friends to hang with who have a similar interest and enthusiasm for SW like he does.

ask him if he wants to end up like darth vader: missing his limbs. lol and say that you're THAT kind of person. ^_^ jp. ask him why he keeps following you. and then tell him you feel uncomfortable. and if he doesn't stop following you... ask that darth vader question. ^_^