i like this guy (we can call him...bob) and im not sure if he likes me....like the other day he came up behind me and whispered something in my ear & then he goes..."oh u smell good...like coconut or vanilla"...and he sits on me a lot & i catch staring at me a lot & he tells me a lot of stuff I dont see him telling other people. But yet he calls me ugly,fat,and stuff like that. do u think he likes me???

lol, it certainly sounds like he has an interest in you...
doesn't it just make your day when someone tell you that you smell good?
^ ^*
anyways, when he calls you names and insults you, maybe it's because he wants to hide his real feelings so he replaces them with insults.
it's kind of old making fun of the one you like, but... tsk.
good luck~

How do you know he doesn't tell anybody else?

that's a way of hiding his feelings when he makes fun of you like strwbrrykiwi23 said. But don't let it go to your head. If he likes you, then he can make a move, right?

It does sound like he has an interest in you, but making insults also is kinda weird. Hmm well, just keep an eye out and see what happens. Good Luck!