Broken Student (Severus Snape/ Student love story)

Rosaline Dumbledore has no idea that she's the granddaughter of Hogwarts headmaster Albus Dumbledore. All she knows is that her mother despises her but her father adores her, she has no friends, and her teachers love embarrassing her in front of the entire class by calling her a know-it-all. Sure, she knows she's smart but she doesn't think it's a bad thing. Then she goes to Hogwarts, finds out who she really is, reunites with half of her father's side and all of her mother's side of her biological family, her father is her biological father Armando Slytherin but her mom is her step-mom, gets sorted into Slytherin house and finds a place where she truly belongs: In a class where she can show off her knowledge without being made fun of by the teacher and in a room where books are her friends. Those places are potions class and the library. She sparks the concern of the snarky potions master when she doesn't go to dinner, or any meal for that matter. Will a relationship blossom between them or is she just his bosses granddaughter and another student to him?