poofpoofbunbun

It’s either a king/queen or emperor/empress that are already married or are only engaged. They break up and the FL becomes the queen of her original country and then the ML her ex-partner and herself slowly become closer. In the end they both stay the respective leaders of their own countries and secretly date. Thank you!

This was originally a Korean novel. I think she transmigrated into this villainess who was either already engaged or just living with a Duke. The Duke hated her. She was loved by her brothers and the emperor. There was one scene where they are all having a tea party in the garden in the imperial palace and there was a spy in the bushes. The MC might have had pink or silver/blond hair? The other female rival character was evil I think.