On a recent episode of Intimate Note 3, best friends Kim Jong Kook and Hong Kyung Min invited 2AM members, Jo Kwon and Seulong in an attempt to get closer with them. In this episode, the idol spoke up about his famous tight-knit friendship with fellow JYP group leader, Sunye of the Wonder Girls. In this episode, Jo Kwon confessed, "I have cried for Sunye." Jo Kwon then told a story back from his trainee days and shared,

"In the past, there was a time when I went to Gangnam to eat dongkatsu with my friends because I was so hungry. I had to get back to Suwon but realized that I didn't have 1300 won for the bus ride. I called my close friend Sunye and she came with the 1300 won. However, the last bus had already left. Eventually, we both ended up falling asleep at the train station, leaning against each other. Then we walked back to the practice room for two hours at six in the morning. That day was my 6th year anniversary as a trainee. I was so sad."