You started a fake relationship with Taehyung, the captain of the volleyball team... they don't get along any better, but they just had to pretend, although that day everything changed

You went to see him at a game as a "good girlfriend" but when a guy flirted with you in the stands the game stopped and he looked at them seriously

"Take your eyes off her or I'll break your neck," he said, and for a second it seemed like he wasn't pretending.