On August 4 episode of Channel A's television show 'Why Are You at My House?' (literal translation), HeeChul opened up about some struggles he had as a famous person.

That was when model Han Hyejin asked HeeChul, "Have you ever shown Gangwon-do around to your ex-girlfriend before?"
HeeChul responded, "No. I actually have never gone on a trip with any of my ex-girlfriends whether that is in Korea or outside of Korea."
Upon hearing HeeChul's response, everyone got surprised and commented, "What? Not even once in all these years?"

He continued, "Ever since I made debut, my social security number was not just mine. It got leaked and shared. Now, so many fans know it. Some of them used it to sign up on some websites as well. That's why I never use my e-mail. I had such little privacy that I can't even open the curtains at home. There were times when it was really bad."

HeeChul said, "But I have no regrets. I believe you can't be entirely happy with any jobs. Being a K-pop star made me very happy, and I don't think I would have felt the same level of happiness if I had chosen another career path."

Their "fans" would do extreme things such as breaking into their dorm, taking photos of them in underwear, booking the same flight and sitting next to them, calling them every hour, and so on.
(Credit= Channel A Why Are You at My House?)
(Lee Narin, SBS Star)