Allkpop.com had a post about Yu-na's apperance on a popular Korean variety show: http://www.allkpop.com/2010/04/kim-yuna-sheds-tears-on-kang-ho-dongs-knee-drop-guru
During the show, Kim Yuna talked about her recent loss. “After getting the gold medal at the Olympics, I hit a slump at the Turin World Championships in Italy. At the time, it was physically and mentally painful.”
She said about her press rival, Mao Asada, “Mao and I don’t have a problem with each other but people around us make it (their rivalry) such a big deal so it’s uncomfortable. Once, I hoped I wouldn’t run into her during a game. But if Mao didn’t exist, I wouldn’t exist and our progress would have never happened.”
When asked about when she wants to retire, Kim Yuna replied, “That’s too hard to answer.”