The Bad Boy is My Best Friend

Sofia and Jensen have been friends ever since they were little. Their mothers are best friends from high school therefore Sofia and Jensen have always gotten along. However, when Jensen's parents get a divorce, he is forced to move across the country and leave behind his best friend. Assuming that she will never see him again, Sofia becomes an introvert and is bullied often because of it. She has no friends, never goes out and she is always getting the top marks in her classes. She is always being shoved around, treated like trash and excluded from everything. Now, nine years after their parting, Sofia finds out that her best friend is returning. How does she feel though? He left years ago and they lost contact after that. Is their relationship going to return to how it was before he left? Or will they not even acknowledge each other? Sofia doesn't know the answers to any of those questions. All she knows is that her best friend is back but now he is the school's bad boy.