HELP

hello mangago community

I AM IN DESPERATE NEED to FIND THIS MANHWA that i absolutely DESPISED
i know this may sound contradictory, but please

all i remember is that there was a red haired uke/seme who i'm 95% sure cheated on the mc and was forgiven in the later/last chapter(s) of the story.

i am sorry for the lack of information. this was around 2 years ago, and i sincerely have erased it from my memory from how horrible and traumatically bad this manhwa was.

please give me titles/links to any stories that sound familiar

thank you for your time

tldr: help find manhwa i hated with red hair cheating mf