Been there in a workplace love triangle before. It was hell for a while, but you will get your groove back. Something will come up, and you will forget her in time. Mine, I NCed her as much as I wanted to call and "win her back". The best thing that you can do is NOTHING!! Mine even tried to eventually talk to me again, asking details about my life etc. I was so mad and hurt, that I just couldnt "let her in" anymore. I answered her questions with the shortest most vague answers possible. Trust me, women go nuts when they used to own you, but sense that they do not affect you anymore. Also, do you really beleive that how your thing started that "it" would last. I am going through a NC right now, it sucks, but it will pass. Trust me, ive been there before.