
If you are referring to only this chapter then you just saw the pov of the boxer from past encounters with the MC
Also he collapsed on the stairs after he got home from his fight most likely because of his medical condition (hes been to the doctors office before and was told to quit boxing or getting more hits to the head or else he will experience brain damage)

basically this chapter was about how Incheol has been slowly but surely growing on Boxer man. And because of Incheol's 'interference' in his life, Boxer man has not been able to find as much pleasure in boxing or hookups as he did before Incheol happened. He's getting addicted to Incheol and this chapter was him resenting the fact and being in denial of the truth that he might actually find this fancy suit guy (who is at the beck and call of his boss running around doing their bidding) a bit intriguing...all of this ruminating while his chronic boxing induced brain damage continues to push him closer to death.

Youre welcome sweetie! The point of the chapter was to speak volumes through the silence. For example one such instance was when Boxer guy jerked off using Incheol's coat right after he just had a hookup. Cause it didn't satisfy his desires. It's not enough if its not Incheol anymore. hhhh okay I'll stop here I've yapped enough
i’m really confused does anyone understand what is happening