ItsFeli:

Maybe? https://mydramalist.com/13587-my-love-eun-dong

No. From what I can remember. Female lead's lover died. She befriends and starts to fall for the male lead. Then another guy who happens to look like her dead lover appears.

I'm putting it out there as memory is a bit sketchy but i'm sure this is the storyline in Perserverence, goo hae ra

Although saying this ... it's doesn't say anything about it happening in the synopsis so its properly not