Responses
How about the "remarried empress"?( For straight manhwa),and "speak of the devil" for bl.
Secret relationship
Maybe you'll like some of these
https://www.mangago.zone/home/mangalist/2857208/
I really want to read something that has rejection, reencounter, chasing, begging, and regret, doesn’t matter straight or not i went through some lists but most of them forgave the ML / Seme too easily