Responses
in both stories the uke actively makes attempts to make the seme jealous.
https://www.mangago.zone/read-manga/beasts_of_desire/
https://www.mangago.zone/read-manga/precious_thing/
TYYm(__)m
Where seme is so ignorant and shows no interest in uke then someone gets closer to uke and seme gets jealous (or someone who's close to uke)