you and Yijin were best friends, you told him about the guys you liked, who you dated and who came out to you, however, he never liked to hear that, as he liked you, you were currently dating a guy, listening to you talk about him but Yijin was just thinking about how you could like him, He saw him in the distance and wondered what he had that he didn't have, why you liked that one and not Yijin, he saw how you looked at him when he passed by, he wanted you to look at him that way