Paige came out pretty young as a lesbian to her mom, who's surprised but also very accepting of it.In their case however, all three girls were already aware of their sexual orientations, completely open about them and it's just the first relationship Paige or AJ has.
AJ, the real culprit, eventually confesses and exonerates Paige from the charge. She gets a deal to reveal the real culprit, or she'll be suspended.
