You and Jungwon were class officers so you and him get shipped by the other students often, but when a new another attractive student came, everyone shipped you instead of Jungwon.

Anyways, Jungwon was your friend, he really is clingy to you.

So one day, you were at the couch, and the apartment door opened, and saw Jungwon full of tears and puffy nose. He got dumped by his "girlfriend" for him being a lovesick puppy..