Suho didn't know what was wrong with him for it seemed he just can't stop drinking in those 'supposed-to-be-worthless' words written on the now familiar piece of post it, in that familiar elegant handwriting that seemed to comfort him more than they should. Than he was allowed to be comforted.
Perhaps it had something to do with the feeling of comfort the words (even if they were just fanciful lies meant to deceive him in the worst way possible) provided him with like it's previous counterparts? Or was it because of the way the notes all seem to point out all the facets and dimensions of his personality and emotional psyche that he himself was not aware of ever needing to be pointed out for him?
It seemed that the writer seemed to know him more than he did. And isn't that frightening? Someone whom he didn't even know was writing these notes that seem to pinpoint all the darkness in his thoughts and ask him to overcome them when he himself never knew he needed them. Or how much he needed them.