In 2016, Kim Seon-Ho told the story of his past relationship on SBS Power FM's radio show, Park Sunyoung's Cine Town. When he was serving in the military, his then-girlfriend of 3 years texted him to break up and even blocked his number. The actor recalled how he was so desperate, he went over to her house to talk to her and knelt down in front of her, which dragged on for 3 hours.