Why are highschool wrestlers narcissistic and arrogant?

I am a 17-year old girl who is a cheerleader at her public highschool. I am also extremely athletic. I am the captain of my public highschool's female tracks team.

Not to be arrogant but I am an extremely attractive girl. I want to be a model someday. I also want to be a fashion designer.

At the public highschool that I attend, I am very popular and have many friends. I don't like loners. They're creepy and weird.

I am also an honor student.

Anyways, my real question is why are wrestlers narcissistic? I'm the most attractive and the most popular girl at my public highschool so I have many highschool footballer admirers and one is even my boyfriend but an introvert star highschool wrestler just called me an attention-seeking narcissist after I asked him out.
Why are highschool wrestlers narcissistic and arrogant?
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