Why does no one talk to me at school?

I hate to ask this but this is my reality. Nobody talked to me a whole year intending to be my friend. I feel so sad and makes me think there's something wrong with me. Teachers never fucking care if I am alone all the fucking time for 2 hours in class while everyone else is laughing and talking for each other for hours non stop. What am I doing wrong? I don't look weird, instead, I put on makeup, dress very nice, and just do what the teacher explains and still nobody talks to me, they don't ask me for help. I am so tired of this shit, and makes me feel like I'm gonna be alone for the rest of my life. No guy has been interested in me :( nor the pretty girls in my school wanna be friends with me. Nobody. And it wonder if it is because of my level of attractiveness. I Can't believe a fat crazy weird- looking chick got more attention from the guys than I did. I hate this shit. Don't laugh at me. I am just a teenager so I don't understand things.

Why does no one talk to me at school?
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