Responses
No, its not.
From what I remember, the ML is a prince or something and the FL pushed for the engagement and was clingy before she got her memories back.
beta
The details!!
1. The FL remembers the memories of another life
2. The ML is the FL's fiance and cheats on her
3. While the ML cheats on her, he invites her over to make her jealous
4. After the FL remembers her other life, she lets the ML have it (basically tells him their engagement is canceled and for him to screw himself because she is over him)