Why do other white people dislike me?

some background information about me. I am a 21 year old woman, white, and i don't have too many friends, and my bf when he tries to bring me around his white friends (he is mexican/mestizo) they pretty much always don't like me. I don't try to talk like i'm not white or anything. They say I am loud, obnoxious, and "I think I am a bad ***".

I have no idea how i gave the impression of thinking i'm a bad ***, and i don't see why they laugh at my jokes and seem to hang on every word i say when i am there and then tell him they don't like me behind my back. I have been nothing but nice to them until i found out about that. I bum them my cigarettes, i cook for them, i smoke my other smokable plants with them, i drink my drink with them, well not since i found this out. i told him to keep his ingrate friends away from me. but it is not just his white friends, it seems to be a common theme with white people disliking me.

I'm not saying this to be arrogant just to give you the idea of the kind of person i am, I am smart more than a lot of people(i only say more than most people cause an iq test told me so), but i don't try to flaunt it or hide it, I am pretty, a little overweight though, I am not especially confrontational but i will say something if i have something to say and the person i want to say it to is there, I do have a habit of saying whatever i am thinking, I am funny, and i have been through and survived alot, i don't often talk about it, but maybe that is where the bad *** thing comes from. Also sometimes i have a temper problem but i have worked on it a lot since i was a teenager and none of them have seen it. i don't know. i guess that is what i am asking yahoo for.