I swear I have a recommendation for everybody but when the time comes I can never remember the name.
It's bl rape, imprisonment and Stockholm syndrome and definitely not what you're looking for BUT, npc ML is jealous of MC's perfectness and imprison rapes him as revenge for being rude to him, and as revenge on society.
(Spoiler)
the NPC looking ML kidnaps the popular MC and rapes him for like 3 months in an uninhabited mountain cabin bc of his inferiority complex towards MC and then MC gets Stockholm syndrome. ML releases MC (planning to suicide by himself) but MC doesn't wanna leave. ML kicks MC out and in the end chickens out on killing himself. MC is pissed off as reverse kidnaps ML to continue their love.
I think that one is this https://www.mangago.me/read-manga/being_delivered_fan_translation/
like the one who is jealous and then takes revenge