
True, "no one deserves to be raped and treated like that" IN REAL LIFE. This is fiction, this is SMUT(hentai for females) these characters were made for our entertainment. Also, even in this logical fictional universe, Minho is a grown man, he can leave or at the very least he can fight back. This is fiction and if you read the previous chapters you would know that Minho gets aroused when thinking about the time Doona first raped him. The author is hinting that he's a masochist.
And no one knows the characters better than the author.

It doesn't change the fact that he was raped and that the author is openly downplaying the abuse he faced in the story.
This is a story advertised as a romance and BDSM, meanwhile we get mindless revenge rape porn without any warnings and questionable scraps of plot.
What's more the author only put warning on the scene between Wookyung and Minho which was (of course) wrongly labeled as "BDSM graphic content", meanwhile it was just rape scene.

I wholeheartedly recommend this topic:
http://www.mangago.zone/home/mangatopic/11329329/
Some of y’all in the comment section need help