Teens: have really smart kids ever judged you by your personality/grades?

i'm pretty smart-im just lazy. my grades are pretty good, but could be better. well, there is this 4.5 gpa perfect girl at my school, and i tried to talk to her-she looks at you like you are an imbecile..everyone says she dosen't talk to you unless you have perfect grades. is anyone at your school like this?