Responses
https://www.mangago.zone/read-manga/my_in_laws_are_obsessed_with_me/
Sounds lot like this manhwa.
it could be this one
https://www.mangago.zone/read-manga/for_those_of_you_for_whom_regret_is_a_luxury/
it's also on WebToon under "To Whom It No Longer Concerns"
Tysm it is this one!!
Sorry it's not this one but thanks for trying to help!
Romance historical (western) manwha i believe the FL has white hair and ML has black or dark blue. The FL marries or gets with the ML after finding out that her ex fiance and sister were messing around together. The sister also likes the ML.
I think this is a newer manwha? I saw it somewhere but forgot the name...
Thanks guys