Love... a guy... but my best friend?!?

Aaaargh!!!... need help!!... I like this boy from my school and my best friend ........ shes a girl.... yeah... and I think I like her... I really cant believe ive developed some feelings for her... shes been my bestie for ages ad I like her..... plz plz plz plz plz plz plz plz plz plz..... help?!?!??!?!?!?!?!??!?!?!?!!?!?!?!?@???!?!? I mean im npt lesbian imm sttaight but I dunno... I just have some small feelings for her Dx