I'm a sixth form(college) student and i've had the worst month in my life, and i need someone's guidance...well an opinion from everyone could help

1. during the beginning of this month this random girl humiliated me in front of everyone. she touched me and said that she wants melol. She didnt say it because she liked me or anything but because she was trying to look good in front of her friends. (she has a boyfriend) this also happened today with some other girl(also has a boyfriend)

as a person i'm pretty quite and often seem to wonder of in my own little world lol, i look kind of nerdy however i do try to be normal just like everyone else and i'm average looking.

I just dont understand why girls have always done that to me, do they think i'm despearate? Are they despearate for attention and if so why am i the target?

sorry for the terribly structured paragraphs