People who read this chapter when it first came out probably feel the same as me..
Girl i still hate it he couldn't be bothered to at least fuck him on the couch? called it Charity work huh and gable be like well it's not like I was forced to.. gable be fr he took advantage of you and you ain't blind or the guy who only have one eye here.. omagahhh
No, really, when the first time it came out, there were many who pointed it out, and I very much agreed that it was done without consent, even if Yuri himself didn't mind it since it is Yuri who is hopelessly in love with Xinlu. Yuri otherwise was not hurt by the sex, but he was hurt by it being a "charity work" from Xinlu.
That said, I think we already know the kind of person Xinlu is right from the start. So attaching normal morality to him isn't going to work. Xinlu came from a highly privilage family who deals with shady stuff, and people came flocking to him without him even trying. In the earlier chapter, he did mention that he didn't particularly care for sex. For him, doing it is akin to charity work. This twisted man really thought he is doing Yuri a favor, without realizing he has fallen in love with Yuri, and he needed an excuse to get close to him.
That I think is a part of the appeal of this couple's dynamic. When a psycho falls in love, this is what happened. Yuri will slowly make this tiger and domesticate him into a cat.

Tf? This is Rape he's fucking drunk and out of it and he fuck him? And keep going while unconscious too.. treated like a FUCKING SEX TOY.. HE DIDN'T CLEAN HIM OR PUT HIM TO BED he showered by himself and he calls it CHARITY?!! should have lost both his eyes cause WTF?!! Bro I let the violence past cause I get it he's emotional and all but this???!! Xinlu fuck you.. I need gable to get the fuck out and leave that bitch