Okay.. I am making another attempt, maybe someone knows this bl..
All i remember is that ML or MC had a fiancee, she was pregnant, but they broke up because ML and MC were in love. She tried to k**l herself by jumping off (the hospital i think) building. The ex fiancee stopped her. ML and MC moved in together and after the child was born she let them take care of him, cuz i think she got married and was pregnant again and had to give birth.. idk
Pls help
Sounds like: https://www.mangago.me/read-manga/broken_season_revised/
(I hate this manhwa so much, btw. lol)
Help me find something. I don't remember much..
Mc or ML had a fiance, but they they broke up (and i think she tried to off herself by jumpi g off a building), but the fiance was pregnant and she knew the ex was dating a man. after the child was born she was really cool about it, even let mc and ml take care of the kid. (I think she got married and got pregnant again)

Helps