how do i deal with this?

i have an extremely annoying male classmate thats very stubborn and arrogant. he doesnt do anything for group projects and makes a fuss about having to memorize 2 sentences for a presentation that I MADE and WROTE, he steals my food then throws the wrapper at my face and calls me racist slurs for no apparent reason. everytime i try talking to him for school purposes, we always end off in a bad note with him screaming or swearing at me like a toddler. we havent even known eachother for that long since he just transferred to this school, but i just feel like he has it out for me and only me. hes not even that rude to our other male & female classmates, hes actually quite polite to them sometimes. i dont understand why hes so much more aggressive when it comes to me.

ive tried calling out his behavior publicly, telling friends and teachers about it like the goody two shoes that i am but no one in the world seems to care. they say that its just apart of life and how its normal for a teenager to experience things like this, but honestly i seriously hate it and i cant take his attitude anymore. i dont understand him at all, it seems like he's out for my blood everytime he talks to me but then i see him staring at me during class with a blank expression. i don't know where it all went wrong. maybe i come off as clueless and annoying sometimes because i suck at interacting with people. but i dont know. what do i do?