My friend keeps copying me and it bugs me!!?

ok well my friend ALWAYS copies me and i hate that i mean i know it should be a compliment but doesnt mean she has to go out and buy the SAME exact thing as me or when i cry she pretends to cry and then i'll talk about something like a hate nachos i hate the cheese then 2 days later she says the same thing i put mj quotes on facebook she does the same i say i love dancing she says i love dancing what do i do!!!