At an all girl school

You are a female freshmen that came to this school months ago and you had heard of rumours about a senior who confessed her feelings to another girl but sadly got rejected, after that day that day the girl committed suicide by jumping off the school building in the 10th floor.

Students said till this day she still haunts this school and would leave fake love letters around different areas around the school like bathrooms or classrooms, pretending her victims as her past crush that rejected her as a way of vengeance and revenge.