Responses
https://www.mangago.me/read-manga/kikonsha_desu_kedo_nani_ka/
It's Japanese but your description matches with this one.
Oh yes this is it
Its actually japanese haha sorry
I think I thought its korean because its a long story
No worries ^^
I know its a korean webtoon
The MC was married to a woman, then got divorced as he is actually gay. But even after the divorce, they are on a good term. I remember the wife is from a rich family, but then she started working at a flower shop, eventually married to the flower shop owner. I just remember that I like how ex can still be friends