Back when Soyul announced that she will be taking a break from Crayon Pop activities due to her panic disorder, DC Inside Crayon Pop Gallery fans had written multiple posts that mentioned Moon Hee Jun's name. One fan had written back in October after the hiatus news :
"Moon Hee Jun, I will forgive you if you guys make it to marriage. If you guys break up, I will not forgive them. I might become a psychopath."
Not only that, many other Crayon Pop fans had written about Moon Hee Jun, implying that they suspect that the real reason for Soyul's break was her relationship with Moon Hee Jun, not panic disorder.
One post's title is, "Is it really because of Moon Hee Jun???" Another says, "Did Moon Hee Jun give her a hard time?" All the posts are written right after Soyul's announcement of panic disorder.
Moon Hee Jun recently announced his plan to marry Soyul in a handwritten letter to the fans. The official story of their relationship is that they first met 2 years ago and began to date since April of this year.