
Yeah kinda, it’s shown in those 3chs. He chose to stop prostituting himself early in the story to change his life for himself before meeting the mc bf and establishing their relationship. After the assaults he turns to drugs and alcohol, goes back to “allowing” people to rape and gets abused beyond what he used to allow people to pay him before in what seems to be a self inflicted punishment sort of way. He gets progressively darker rings around his eyes throughout this until the intervention

I didn’t translate the whole chapter but I can tell you in ch18 the father is harassing him about something. He possibly wants him to prostitute himself more to get more money (to fund his gambling addiction/debt maybe? I’m speculating). But it turns into an argument the escalated to the point where the Ginger breaks a soju bottle and sims to hit his father. Then the MC burst in and gets in the middle (he is hurt a little but not much). He gets in the between the two, they exchange words and then he takes the ginger by the end of ch18. The rest of the story is them talking and arguing and apologising and sex. Is that enough detail for you?

Well don't ask me, I didn't read anything yet I was just triggered by the word cheating so I was curious and saw he didn't cheat but was rape so I started asking questions. BUT, from what I understood from OP, his BF saw him "enjoying" the "intercourse" (rape) (but he was just acting whishing it could finish quickly) and ML so feel really bad I guess that his beloved saw him like that and flee and return to prostition as self-inflicted punishment and it's easy since ML father is the pimp. ??? It's what I think I understood, if that can help.
This a fast passed short 22ch story. I had to make a major correction spoiler bellow.
It is initially very fluffy. The ginger does not cheat on his boyfriend (the mc/top). (Ch15) Someone broke into their home and violently assaulted him before dragging him up the stairs to rape him on their bed. Ginger is coerced into acting like he likes it hoping that will make things end quicker before the bf comes home. It doesn’t end, the bf sees this, ginger is further mortified and then watches his boyfriend possibly beat the rapist to death. In shock, he leaves him that night completely traumatised, hating and blaming himself for what happened. He is in a deep mental health crisis where he experiences further abuse (ends ch18). From there the angst continues but it’s about the love and repair from the trauma and they get back together