This guy is obsessed with me... Does this sound 'normal' to you?

He's not weird he just really likes you and is really trying hard to get to know you better. He probably thinks that you are playing hard to get so he is even trying harder. I kind of feel for the guy but if you want rid of him you need to talk to him and be honest about your lack of feelings for him and let him know that he doesn't have a snowball's chance. He will then probably leave you alone. Good luck.