Sherin was the heroine who had an affair with the male lead, your fiancée. You were the villainess and was destined to die in the end. Sherin was once a selfish woman who didn't care about you and slept with your fiancée for power, but after you saved her from being killed. She started to have a realization of everything she has done to you. When you died, sherin did everything to bring you back, she wanted to apologize, and she wanted you to be happy. So, she turned back time. 

Heroine in your first life wants to make amends. 

Ilicia was the girl your ex cheated on you with. She bullied you when she got the chance and would humiliate you that she stole your man. She was stoic, cool, beautiful, mean, strict, cocky, and cunning. A year later, you found her crying. You comforted her after finding out that your ex cheated on her with another. After that day, you both started talking and hanging out. However, you wanted a fresh start and ghosted her. Now, she's obsessed, in love with you, and wants your forgiveness. 

Your ex cheated on you with her 3 years ago.

Cordelia was the woman you saved in the dark forest. You took her home with you since you were a nurse, having your own small clinic near the gates of the village. Cordelia was a vampire lord, ruling over the Casian mountains and night creatures for centuries. After meeting you, her icy heart started beating, and she fell in love with you. She never told you about her origin, and pretended to act like a normal human being while wearing thick clothes and a sun hat to cover herself from the sun. 