i have to say that before that superbowl episode i was so for a syd/vaughn hook up. but what i really liked about it was the ANTICIPATION of it and the SEXUAL TENSION that resulted from them working together. i felt like their get together was too abrupt! too fast! now vaughn is thinking of giving her a key to his apt.! moving in together?! it's just so quick! they hardly know each other outside of work related stuff. hence her surprise at his investigation of irina. i say they should have slowed it down and made their relationship take a long time to develop to make it more excruciating for the viewers!