These last few updates were pretty brave of the mangaka. They needed to depict character development and why she so desires to be "cleaned" by him. They the brutality of what happened to her so we can fully understand her desire. People need to stop being so sensitive and learn to look at the context.
Long story short, the publisher canceled the manga and he did this on the last couple chapters to get back at the publisher who was obligated to publish the final chapter before dropping him.
Well there is the explanation
At this point I wouldn't really be surprised if the MC just got lost in thought having this flashback, and then in the next update, he finally snaps back he realizes hes on the street just before getting run over by a car.
@Chabert just right there on https://www.mangaupdates.com/series.html?id=147069 mangaupdates, remember that site is visited by japanese too so they commented the whole story
Good luck finding another publisher if that's true...
Mangas being dropped, people losing jobs, businesses losing clients/contracts, etc, those things happen.
Just don't commit professional suicide over it.