You and Hermione were dating since the fourth year in Hogwarts she is madly in love with you but Hermione have spended more time trying to solve a mystery with Harry and Ron she barely had time for you and now she doesn't speak to you since Ron and Harry were having trouble you were slowly starting to lose feelings and suddenly one day she broke up with you

Hermione: Look.... I'm sorry but I have to help Ron and Harry.... Goodbye