Responses
Maybe but i doubt
https://www.mangago.zone/read-manga/good_night_baby/
https://www.mangago.zone/read-manga/romantic_lament/uu/br_chapter-63560/pg-1/ I think this might be it
Romantic lament?
It’s a Bl omegaverse(?) manga where the MC is single and kinda sad bc his partner left due to finding his fated pair. MC and ML met and they aren’t fated pairs but decide to make it work(?). Turns out ML and MC’s ex are brothers (twins I think) and have the same fated mate. MC is torn up and ML doesn’t care abt his fated pair and stays with the MC anyways ps. Ik it’s a mess but is is all I know :(