Chemical impulses. Sentiment, feeling. None of this holds any meaning to Sherlock. He is, after all, an intellectual and not a romantic. Deemed as irrelevant, a distraction, a flaw and a weakness, the consulting detective has always been able to put up a front to block from the distraction and help him with the work. But now, there is another man, someone who has also put up a facade. Someone who is also hiding from view, a woven, intricate mystery. Everything about him is intriguing and fascinating and Sherlock wants to know more. His criminal counterpart, Jim Moriarty, is someone he is willing to learn more about. And perhaps these sentiments weren't as silly as he thought them to be after all..