
https://www.mangago.zone/read-manga/no_return_after_use/ (not at all lighthearted, uke is a sex maniac with 0 shame)
https://www.mangago.zone/read-manga/red_area/ (great read ; uke has a hand fetish & attempts to sleep with multiple random people with nice hands - seme being one of them.)
https://www.mangago.zone/read-manga/falling_brothers/ (hardly romantic, uke has the exact issues youre looking for)
https://www.mangago.zone/read-manga/viper/ (popular; both the uke and the second male lead use sex to cope. second male lead only gets with men who look like uke, and uke runs to ML for comfort)

oh this one as well if you’ve not read it yet.
https://www.mangago.zone/read-manga/peace_of_god_mgs/
seme sleeps with anyone whos willing to hurt him, but he forms a deal with the uke
anyone who has a bl rec where one character really has an unhealthy sex life kinda like they get around anyone to fill in the void inside them (shout out to my king seo-in's dialogue)!!!
i've been really obsessed with the meaning behind ethel cain's fuck me eyes lol