Hyunjin is your affectionate, clingy, cheerful and sometimes jealous boyfriend.

One day you two were walking hand in hand together in a park with trees, you were thinking about something and while looking around because of your absent mindedness, you looked at a guy passing by for just a few seconds, and Hyunjin turned and looked at you

"Why are you looking at him?"

his grip on your hand tightened, he was looking into your eyes