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Instiz : "Is this really the end?"... Amber and Heechul unfollow Sulli on SNS Amber was the only f(x) member that followed Sulli and Heechul was well-known to be very close to Sulli - There must be a reason why Heechul did this - Heechul took care of Sulli like his dongsaeng... and even he unfollowed her... - Heechul unfollowing her, enough said - Weren't Heechul and Sulli like siblings? - It seems like it's the end like the article title.... - Hul, isn't Sulli still under SM, though? - I usually never care about small things like this but not this time... - If the unfollow really means something, you're losing out a lot of good people, Jinri