"The Girl Who Lived" Draco x Cecilia(an OC)

Snape's daughter Cecilia starts her first year at Hogwarts, where she makes a friend, Draco, who ends up becoming her Best Friend. But as the Years go on, she starts feeling closer to him, but he becomes distant.

EDIT: this book has been discontinued, but I am writing a newer version, so be sure to check it out!