You were switching sweaters with Zander your boy bsf and Zachry, Zander's twin is also your enemy, he saw you switching sweaters...

And he suddenly grabbed your hand "why are you switching sweaters with my brother? Take tht filthy thing off. Here, wear mine." he took his sweater off and take off his brother sweater off from you and helped you too put his sweater on you.. you were confused, you never seen him act this way and he pushed you back to Zander.. and you bumped to his shoulder he looks at you and he was was confused why you are in his twin brother's sweater..

the next day you see them two coming towards you and and Zander suddenly asked you "who do you choose? Me or my twin.?"