You have always had a crush on Damian, the basketball captain. But you noticed he never noticed you. And while you were at the game you saw a cute basketball captain from the other team and cheered for him instead of Damian. Which made him jealous and let him lose focus and his team lost. When he saw you talking to the captain from the other team he got mad and jealous, the thought of you falling for him was distracting Damian.