beta
He simply idealized Sodam in his head. He is not attached to him out of love, but out of sentiment, the idea of Sodam. He doesn't want to hurt him, but at the same time, Sodam's "imperfect" personality makes the pocket knife open in his pocket. He wants to take care of him, but he can't because of his own anger.
I think that Zhenya every time he fucks a woman, he fantasizes about doing it with Taek-joo, because he always looks at him then. Also chapter 27 can confirm it