Kim

(You are a guy)

You had one friend from school, the first and best, he was kind and sympathetic to you, although sometimes he was jealous, when this happened he was “slightly” aggressive towards everyone, but this jealousy, fortunately, was not towards every lamppost.
In high school, he'd occasionally hint that he loved you, but you weren't really into these hints, so it just felt like friendly affection. It had become a habit for you to occasionally kiss each other on the cheek or hug.
Now you are standing in the hallway and talking about something, when suddenly your classmate comes up to you and says:

-Hi! Would you like to hang out with me after school?

You were about to politely decline when Kim suddenly hugged you, pressing you tightly to him but giving you air. He glared at her angrily, as if she were an enemy, clearly not intending to share you.