I don't know about 你 but have noticed they 显示 through the entire 显示 Nick and Catherine alot together. Also that 吻乐队（Kiss） on deleted scenes in the pilot episode was so "steamy" 你 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 犯罪现场调查 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 救护车 Warrick doesn't take of his 手套 and Catherine does to hold him because she is torn up inside!Comment if 你 agree with me.