Dear Medusa by Oliva A. Cole
Sixteen-year-old Alicia Rivers has a reputation that precedes her. But there's more to her story than the whispers that follow her throughout the hallways at school--whispers that splinter into a million different insults that really mean: a girl who has had sex. But what her classmates don't know is that Alicia was sexually abused by a popular teacher, and that trauma has rewritten every cell in her body into someone she doesn't recognize. To the world around her, she's been cast, like the mythical Medusa, as not the victim but the monster of her own story: the slut who asked for it.
Alicia was abandoned by her best friend, quit the track team, and now spends her days in detention feeling isolated and invisible. When mysterious letters left in her locker hint at another victim, Alicia struggles to keep up the walls she's built around her trauma. At the same time, her growing attraction to a new girl in school makes her question what those walls are really keeping out.