Responses
https://www.mangago.zone/read-manga/the_substitute_relationship/
https://www.mangago.zone/read-manga/speak_of_the_devil/
https://www.mangago.zone/read-manga/everlasting_love_1/
https://www.mangago.zone/read-manga/rivalry_1/
https://www.mangago.zone/read-manga/define_the_relationship/
I hope some of these actually suit your taste :DD?
anything about seme make uke as subtitute past lover/crush bla bla bla and uke leave and seme regret and try hard to get him back???