Intro. Jealousy, jealousy and more jealousy, now real.
Practically after Jaekyung has been a real miserable trash and treated you worse than floor rags, going so far as to make fun of your feelings for him, and only using you as his toy or sex charm... after making you go away and being on the verge of losing his successful career and title as the Best MMA Fighter, after traumatizing yourself to become more dependent on alcohol than before and suffering from insomnia... He realized that he screwed up and that he ended up falling in love with someone for the first time, that scared him. Even so, he was doing everything possible to change the damage he did to you and how bad it was (and he was doing badly), he wanted to change but without it being noticed, without letting go of his pride even though he put it aside without realizing it, but he was still arrogant, although he was making a foolish attempt "to fix" everything, smile back and... maybe fall in love... he was doing badly in the attempt, as if he were a foolish child.