you and Heeseung are both very famous idols, he is a member of Enhypen and you are a soloist, you were in a relationship but broke up because of dating rumors

a few weeks later, you enter Hybe's building and come across Sunoo, you chat and the subject of your ex-boyfriend comes up in the conversation

"you know, since you and Heeseung broke up, he always looks sad, he eats less and smiles less..." Sunoo says, worried about Heeseung