I'm looking for a korean novel where the mc got reincarnated as a villainess and was engaged to a prince (or probably duke(?)). Then she told her fiancee to let her know if he has someone he loves. Then the fiancee ask why, and she answered because she wants to break the engagement.
there are a lot of stories with the same plot, do you remember how the cover or some details about them like hair color, eye color, etc?
I found some novels that match your desc and I found these: I Thought a Villainess’ Divorce Would Be Easy I Will Take Responsibility for the Welfare of the Male Lead I know there are more but they don't really match. If these are not you can use series finder and search "villainess noble girls" and "reincarnated into another world"
Is there anyone doing spoilers for this?? It's a really interesting one! I'm currently reading the manga in Mangaowl. I have the link for fandoms as well, and I'm also looking forward for the latest chapters! Can't wait! Please let me know when a latest chapter comes out! The name for the manga is called "Survive as the Hero's Wife (The Villainess Wants a Divorce)" Incase your looking for the spoiler for the novel/manga here it is: https://forum.novelupdates.com/threads/survive-as-the-hero’s-wife.80330/ Enjoy!