Synopsis: I Will Just Stick to the Protagonist

After being trapped in the body of a psychotic protagonist's fiancé, she longed to escape to a peaceful place. However, the protagonist's relentless attention made it impossible. To make matters worse, her youthful appearance had already caught the eyes of many. "Have I pleased you? Please, offer me words of praise." Suddenly acting friendly is not a believable tactic - is the protagonist insane? (From the webtoon)