If inrecall in one of the last few chapter's comment section, another
User stated that the marriage with Raira was a dream or delusion when he was in thst short term coma, which corroborates with the initial chapter after the wedding ceremony stating something along the lines of "5 years passed and we are getting married or it was supposed to be." I am thinking this originally got axed where he was hospitalized and woke up. I think that originally the author was gonna continue from there and explain why Raira broke up with him because of how sudden and without reason it was. It also seemed like she had strong reason to break up him and was doing it for his sake based off of some of her expressions from the prior chapters. Perhaps she realized she fucked up in publicly announcing their relstionship causing him to basically overwork and neglect her hence the zoom in on his nails and she said that was the shittiest thing. If this is true, still made no sense but okay. She didnt even try to talk it out with him. Now that the mental gymnastics is over, I think the marriage chapter was the ending the author orginally had in mind after more development jnto it. Then i guess the manga got green lighted for a reboot and author was like "fuck it I already published the ending, i dont want to go back to the main story, lets just continue with a new girl have him be in a relationship eith her, and have previous FMC do a full 180 in character run adjacent to all thjs as I cant throw her away she is a important drama device. Yeza lets do that. Everyfhimg will be fine right?!" Yeap, this how much time amd energy I wasted performing mental gymnastics in attempt to comprehend this ever growing dumpster fire so i can feel that i just did not waste my time. End of rant.
I know, i know sunken cost fallacy, but man this manga pissed me off lol.