Why did he call me a thot?

So im new to this school and ever since my first day the guy would be playfully punching me or pushing me, he even texted me. He invites me to his football games. Before he approaches me i notice he usually stares at me. he has a girlfriend. He barely knows me and today today i passed by him and he called me a thot. Like why, how and what?
Why did he call me a thot?
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