Friends forever. Not. (Lohanthony fanfic)

Rebecca Sanders always was that girl who wasn't the most popular girl and she was always shy. She been best friends with Amber for about eight years. Amber was her only friend. Until she ditches her for her other friends. Now alone and no one else to talk to until a new kid, Anthony, started going to their school in San Francisco. Will she be able to befriend the new kid so she can show him off to Amber that she can survive not being her friend? Or will someone's feelings get hurt because of being used?