https://www.mangago.me/read-manga/secretary_jin_s_confinement_diary/
I have only read the first few chapters but maybe that happens in this one? I immediately thought of this manhwa when you said that the mc is exactly where he wants to be
https://www.mangago.me/read-manga/formless/
might be this?
I wish I could give you the chapter he says it, because I definitely had it at one point but I’m certain he says something along those lines.

I saw a screenshot of a manhwa on twt the other day where the seme broke the ukes ankles i think?? but the uke was saying something among the lines of next time can you be more gentle and all the replies to the tweet were saying he’s exactly where he wants to be LOL
If it helps I remember the panels had like a light-haired uke sitting in bed, probably naked