Why do black women have problems with biracial/multiracial women?

I see this all the time. i dont know if its because i live in the South where most people are backwards but it seems that black girls are mean to me. I go to highschool and im 16 and have experieced the dirty looks and mean comments. They also make fun of me because i like asian guys. - which is totally random, but im just saying. Its not like im stuck up or anything. theres a difference from being stuck up and being confident and feeling beautiful right? So what are your thoughts on this? Im not dissing black people or anything, i just want to know