https://www.mangago.zone/read-manga/i_became_a_sitter_for_the_obsessive_villains/
uhh is it this one? i might be wrong i read it a long time ago
Nope it's not thank you for trying though!!
I'm not sure if it's this one, but it kinda sounds similar, but at the same time not lmao:
A Way To Protect The Lovable You
https://www.mangago.zone/read-manga/a_way_to_protect_you_sweetheart/
Reincarnated or went back in time? I mean it's the same person as before or someone else became that person? I think I don't know the manhwa but I'm curious.
IDKKK BUT I THINK IT'S REINCARNATED
Nope
I only know how the story goes sooo.. It's a historical manhwa btw. The MC is a girl a wife of a duke I think, and the girl is reincarnated as I can remember and about the duke the male lead he is asleep(?) because of a wound and because of fighting a creature, and the MC has a healing power but she didn't know that at first as she takes care of the duke. She actually wants to become a priest because of something. And the Duke mother I think is a bitch I mean evil she wants him to die that's why the Duke's mother got him a wide the MC so that she can feed him poison while he is unconscious because of the wound. And that's the only thing I can remember PLEASED I NEED TO READ THIS I BEEN FINDING THIS FOR A WHOLE MONTH