
Ok so here's what i found in the novel spoilers
The novel is hard to get but there were some who got it and translated
"Now in jien case, she reaped the benefits of being empress and having everyone love because tia was doing her job. She never bothered to learn how to run a country and didn’t really care about tia suffering. When tia was killed, all of the work fell back onto to jien and since she never learned or try to learn. She basically made bad decisions over bad decisions. Her lovey dovey relationship with prince and the people dried up and got worse over time until they finally had enough. So she hates tia not because of anything tia actually did anything to her, but because she blames her for her fairytale life crashing down on her. When really it’s her own fault. "
Usually they're redeemed because in previous life the villainess was evil.but he HATED an innocent for no reason. The sight of him disgust me
Edit.anybody know where i can get the novel. They say the Prince begins the hate the empress after our girl died