Niki is your famous k-pop idol boyfriend and he's in a group called ENHYPEN.

one day after Niki left, you saw Niki's phone on the table. when you we're about to give it to Niki, you saw Niki flirting and being touchy over a girl soloist. you felt jealousy but you just sighed and walked to him and gave him the phone aggressively and then immediately walked away.