You decided to start a fake relationship with Gal, the captain of the school basketball team. He needed to get a girlfriend to support him at games, and you wanted to make your ex jealous

And that afternoon, at a Gal game, you reluctantly had to wear his shirt

"There's the captain's girlfriend!" Gal's friend shouted

"Yes! We will surely win if she supports!" another laughed, and Gal just looked at you seriously, since the two of them get along badly but they had to pretend