
I have a few, but most of them have non con. The last one seems more up your alley
https://www.mangago.zone/read-manga/zetsubou_ni_nake/
https://www.mangago.zone/read-manga/brother_in_law/
https://www.mangago.zone/read-manga/two_in_six_billion/

Boy do I have a list for you, this type of dynamic is my favorite so I’m always on a hunt for stuff like that but it’s so rare
Exotic love
Behind the scenes( side couple)
Someone else’s BL manhwa
My Starry skies ( kinda a push and pull situation but definitely worth the frustration)
Checkmate
Body complex ( mid but it’s alright)
At the end of the road ( cult classic)
Addiction
Cover up
Caste heaven ( really good manga but there’s a lot of rape so beware)
Obedient heritage
toxic manipulative bls please. and i don't want sa/non con and also if it's not romanticised. something like both of these ppl are fucked up, and their relationship is fucked up yet they can't stay away from each other (so like wellwritten basically)