I was in some fancy restaurant, looking for a table where I could sit down and drink undisturbed. I found a largely empty room and made to sit down, only to find a handsome young man next to me, who was much confused by my attempting to sit next to him. He, I realized later in the dream, was Prince William, Duke of Cambridge, &c &c, but I for some reason didn't realize it at the time, and so he and I entered into a pleasant enough conversation about why it wasn't entirely suitable for me to sit at that particular table at that particular time. I consented, still not realizing who he was, and moved on to some other room.
Here my memory gets hazy, but eventually I find myself drinking socially with the Prince, apparently not terribly long before his wedding-- he had taken a liking to me because I was so thoroughly unpretentious during our first meeting, of course (my brain, unfortunately, does not always avoid stupid tropes in its dream fabrication). We got on very well and he was even flirtatious-- by this time I knew who he was, but was nevertheless more impressed with myself for capturing charming male attention than for capturing royal male attention. There was a point where he had to dismiss me, but asked me what I'd like to drink, as he was willing to order and pay for me before I left, and I remember wanting vodka but thinking it better to order champagne, and so I did.
The dream breaks up here a bit-- at some point, for some reason I was trying to pay for a haircut, I believe? At least the place where I was trying to pay looked an awful lot like a hair salon, but the man at the register kept telling me my card was rejected. I remember little after that.
This was a particularly bizarre dream because while I am something of a crypto-monarchist, the English monarchy has never much preoccupied me, much less Prince William-- if I had to pick favorites, it would certainly be Harry. And yet in the haze after waking I noted with the smallest tinge of regret that William was married.