'Secret Love Affair' Yoo Ah In got angry for Kim Hee Ae when he saw Suh Young Woo, her boss, treat Oh Hye Won badly.

On the seventh episode of the cable channel JTBC's "Secret Love Affair" which aired on April 7, 2014, Lee Sun Jae, played by actor Yoo Ah In, saw Oh Hye Won, played by Kim Hee Ae, being treated badly by her boss when he went to receive the scholarship.

After Lee Sun Jae saw Oh Hye Won later in the hallway, he asked her, "Who was that woman? Why was she like that to you? I am not upset about last night anymore. Instead I feel so angry." Oh Hye Won said, "It is none of your business. Just think of it as you are learning about the world," and told him to go. But she thought of him in sleep, and cried. In related news, cable channel JTBC's drama titled "Secret Love Affair" is a story of a forty something woman, Oh Hye Won, who is played by actress Kim Hee Ae, and a naïve genius pianist Lee Sun Jae, played by actor Yoo Ah In.