hopeandkenNot sure if this is the fic but it's the only one I've found where they are both in high school and Buffy has someone stalking her.
Why Me? by spikester0889Summary: Buffy Anne summers is a new student at a school. Her mother just died and she moved in with her uncle (Giles). Buffy meets Willow, xander, and a certain Bleached hair someone. She thinks her life is better than it should be, and she is very happy. But will some people, turn their jealously over the couple, into murder?
Oops!! Forgot the title. lol The story is Why Me?? by spikester0889