"Still, I think that the victory hangs on my racket, because I play aggressively"
To believe that against a player that holds an 8:1 record on clay against him is...
I agree that sounds pretty darn arrogant, but he's gotten better on that front, so that is probably just a little momentary bitterness on Fed's part. How many other players can consistently come back from 5-1, or 5-2, etc. against Fed? You have to figure he is befuddled at the fact that he can't, after all those breaks, find a way to win the necessary 4 or 5 points in one game to take the set. I chalk that up to the mental strength of Nadal, and less to any mental weakness of Federer.