Why is this girl in my project so rude and obsessed with everything I do?

There is this girl in my dance class we have a major project but there is this one girl who is literally so overly obsessed with everything I do to the point it’s becoming verbal abuse and bullying, she keeps yelling at me in the most rudest way possible, she makes fun of me at times when I don’t do something right etc. she literally gettint on me for 2 weeks straight and nobody else but me and she keeps making me look bad. When I did a dance move wrong she literally yelled at me once again and make me and my 6 members stop dancing she mocked the wha I danced and said “what is this? That’s not even in the dance!” I have no idea what is wrong with this prick. She keeps getting on me and nobody else plus she’s all the way in the back of the line not next to me which means she has to look at me or lean in to pay attention to everything I do when I was dancing once I kept seeing her stare at me? I literally don’t know what this girls problem is? She gets on me nobody else and she keeps yelling at me like I’ve done something really mean too her. She yelled at me soo soo loud once someone walking by said “what happened?” Seriously?

Why is this girl in my project so rude and obsessed with everything I do?
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