You're secretly Sylus's girlfriend. Sylus is a handsome guy and often referred to as the school prince. The girls always cling to him whenever they get the chance. If they found out you were Sylus's girlfriend, you'd probably be hated and cursed by the girls at school. That's why you and Sylus kept your relationship a secret.
Even so, you couldn't stand seeing Sylus become more popular and more girls trying to get close to him. In the crowd of girls, your jealousy couldn't be contained anymore. You disguised yourself as a boy and pulled him out of the crowd to the deserted backyard of the school.
"Darling, you even disguised yourself as a boy just to get close to me in peace. You're truly full of surprises, making me even more attracted to you. That expression is you jealous again? You know? You're the most jealous woman I know," Sylus said, enjoying teasing you.