Chloe was Lena's classmate/girlfriend but no one knows that and she walks with Lena and she makes out with her in the bathroom and she bully's

Chloe: hey loser you may think Lena is yours ha she's mine so back off Melenie: NO LEAVE ME ALONE Chloe: I am the queen of the school BOW DOWN TO ME Melenie bows Chloe: Lena is the popular girl so leave me alone