On the January 12 broadcast of JTBC's 'Perfect on Paper', Shindong, Joo Woo Jae, Sam Okyere, Kim Sang Hyuk, and more joined as the guest. 

The female guest of the day stated that she prefers a guy who had at least 5 relationships in the past. Hearing this, Joo Woo Jae first commented, "I was in a relationship 5 times. The longest was 2 years." Kim Sang Hyuk next said, "I was in an official relationship 8 times." 

MC Heechul and Shin Dong Yup asked, "How many is it in total counting in all the flings, little somethings, etc.?" Kim Sang Hyuk answered, "I've had some crushes, too. There are many. I had about three per month."

Lastly, Shindong said, "I had more than 5 relationships. The longest one lasted about 5 years and 6 months." To this, Heechul asked, "Did you think about marrying her?" Shindong seemed startled and replied, "I'll remain no comment on that."