Actor Yoon Park accidentally revealed that he was currently in a relationship on the September 25 installment of KBS 2TV's 'Happy Together.' 

When the MCs curiously asked, "If you're 28, isn't that an age to get married?" The actor responded with a bewildered expression and hesitated so someone guessed that he was already in a relationship.  He admitted, "Yes," causing everyone to burst into laughter on the show for his unintentional revelation.  He exclaimed, "I didn't tell my agency yet..." but he had already let the cat out of the bag.

He was then mercilessly teased by everyone else on the show, especially because of his innocent reaction to being asked about marriage.  He had put his thumb up to his mouth cutely, portraying a side that was very different from the rough one he shows on current drama 'What's With This Family?'  One guest even pointed out that they were from 'Entertainment Weekly,' but this did nothing to stop him from continuing to talk about his relationship.

As the MCs kept badgering him with questions, Yoon Park ended up revealing that he had been dating a student for 222 days and also said that they had already shared a kiss.

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In addition, currently signed under JYP Entertainment, Yoon Park commented that there were two restrictions when it came to his agency: "They said don't drink and drive and don't do drugs."

MC Yoo Jae Suk took interest in the actor and said, "For someone who is 28 years old, you are very innocent."