Responses
https://www.mangago.zone/read-manga/hate_mate/ it's bl but i feel like it has the vibe ur looking for
One of my favorites. https://www.mangago.zone/read-manga/watashitachi_no_shiawase_na_jikan/
Wanting to be with a previous lover is a big theme in this, though, it does have a happy ending. Still cried nonstop.
https://www.mangago.zone/read-manga/ways_of_parting/
I actually love sad endings, especially when they’re both alive and they just simply don’t work out because even though it is sad, it’s realistic, and not everyone ends up with the person you want. Honestly, I would love more manga/manhwa where the fl/mc end up with someone else and has a bittersweet ending like La La Land.