you and taesan have been together for 1 year, and he is actually the bad boy at your school and also a trouble maker, but even so he is sweet to you but strangely today... his attitude changed? Waeyo?

he just came to your apartment as usual he do but his face looks very...cold and like he's annoyed

"Hi baby, welcome my taesan"

you said with your cute smile but his face didn't change, instead he started to take off his jacket then put it roughly on the sofa then he took off his cap too and... he slammed it on the table but still didn't say anything

(Flashback!~ earlier when you got home from school, jaehyun, your friend, took you home, and he found out that made him extremely jealous)