According to Popseoul, Kim Hyun-joong and Bae Yong-joon are on an extremely friendly basis. Their relationship is comfortable and he feels unburdened. KHJ even goes as far as saying that he can spend hours on the phone discussing a variety of different topics with "Yong-joon hyung," ranging from past girlfriends to pretty girls.
Does he ever reminiscence about the “winter preparation” episode when he see’s his “Yong-joon hyung? Better yet, do they ever discuss what a big Bae Yong-joon fan Hwangbo is? Things that make you go hmmmmm. I’m telling you, reminders everywhere!!!