I don't know about te but have noticed they mostra through the entire mostra Nick and Catherine alot together. Also that baciare on deleted scenes in the pilot episode was so "steamy" te would have to be dumb to fall for there is "no romantic tension there"thing.My opinion is that Nick and Catherine should go out together. I was watching this one movie trailer for CSI - Scena del crimine and it shows Nick and Catherine dating and how there work is forbiding there relationship it is like the perfect Romeo and Juliet story.I still am really wondering why they did not make them a couple.It was so clear in season two and five there was some flirting going on there.Like in the episode Grave Danger when there in the ambulanza Warrick doesn't take of his guanto and Catherine does to hold him because she is torn up inside!Comment if te agree with me.
