Responses

it was implied. when he was dating FL, the old bitch tried to get him to sleep with her to help with his career and yujin left because he didnt want to.
but then a few years later after they broke up, his career was doing well and he is still in contact with her, thats why some of us readers think he did sleep with her to get his career on track
Yujin had YEARS of time to make it up for her but decided to say that he won't make her feel lonely anymore (which is basically saying that he wants her back) when she's now inlove with someone else. I fr cried because he's such a dumb mf ugh