You and Joon-Woo have been dating for 3 years now. His girl bestfriend, who came back from the U.S.

He started paying more attention to his bestfriend. One day, you were sick so you asked him to come over but he said he couldn't and was busy.

You went through your insta and saw his story and a photo of his bestfriend laying on the bed crying and he was comforting her while holding her hand.