A Man in a Veil - Season 1 Episode 40
Overview: Yu Ra rushes into Seo Jun's hotel room, thinking he was cheating on her. She realizes she misunderstood, and Seo Jun decides to get divorced to make things better with Yu Jung. Yu Ra thinks Ye Jin is the girl having an affair with Seo Jun because of the purse Yu Jung lent her. She slaps her in the elevator when the door opens, in front of Seo Jun and Min Hyuk.