Why Do People Hate Me?

For some reason a LOT of people HATE me at my school, or claim that I am annoying, but I honestly don't see it. I am an attractive person, I am also very intelligent, but for some reason people have their false presumptions that I'm stupid or something. It's ridiculous! I am part Japanese, so my eyes are kind of tight, so it may make me look like I'm squinting all the time, but I don't get it? I am very nice, and I avoid hurting anyone's feelings, everyone is rude to me for no reason. They actually try to find flaws in me so they can insult me, it takes them a while but they actually do find some mediocre flaws that anyone wouldn't notice. If someone wears something flat out ridiculous, they will insult me for wearing a V-Neck under a jacket, or some stupid $h!+. How can I deal with these people, and how can I stop them, they really must be jealous. Because I am a nice person, but they are total D!cks to me all the time! One girl literally said " I am going to stop hating on you, you're smart", WTF!? Why'd she hate me in the first place? No one knows exactly why they hate me by the way, they just do!