Are you talking about "Falling Down"?
Are you talking about "Ways of Parting"?
noooo
naurrr the exes were like orphan kids both broke and the guy who’s getting married is marrying a rich lady!!
This sounds familiar but I don't remember if it was this one? At least the premise is similar https://www.mangago.me/read-manga/last_minute_drama/
YESSS TY!
it was a yaoi manhwa where there was a couple and one of them said that they were getting married to a girl, but they were still together? i think the MC tried to kill himself and he ended up breaking his arm and other bones and in the hospital he meets his new love interest and they go out together one night in the hospital. then the MC ex gets super jealous of their relationship because he wants him and his fiancée and the same time. AND his fiance ends up being siblings with the MC new boyfriend