It's interesting how people can see different things when watching certain scenes. Fascinating, actually. I was always one of those in the minority that thought, yea, Brian might have said that. He did do handstands and juggling, that first night, according to Justin. Yet, we never saw that, nor did we see it at anytime during the 5 seasons. Handstands and juggling just wasn't Brian Kinney.
Back when I first entered fandom, and S2 had was just about the air; this "ILU" discussion was pretty common. Did he or didn't he say it. Back then, a lot of people believed he did because of the connection we see when Brian and Justin first meet. Brian never responded to a trick the way he did Justin that first night. So, the consensus was, it seemed plausible that an ILU might have been voiced. This may be where my belief in the unbelievable might have been formed.