Cinderella at 2 AM S01E07 - Another Tactic

While Yun-seo and Sung-min seem to be getting closer, Ju-won becomes jealous and resorts to Si-won's advice of turning on his belligerent side. His sudden demeanor confuses Yun-seo and frustrates her, angering her. But when she sees Ju-won with another woman, she is shocked by how flustered it made her.