Built Your Empire, Burned Your Throne Episode 2

Born into a noble family, Rachel Nisbett falls deeply in love with the poor scholar, Connor Redmond, and uses her family's influence to help him seize the throne. But after becoming the emperor, he betrays her and torments her endlessly. Driven to despair, Rachel takes her own life—only to awaken ten years in the past. Given a second chance, she vows never to trust Connor again. This time, she will prove that he became the emperor because of her, not the other way around.