You didn't see that match, did you?
Federer didn't run off the court like you claim, that's why your other idiotic thread got deleted. You read an article or survery or whatever the hell it was and saw that they compared the Federer's incident with Martina Hingis', so you automatically thought they were similar.
What really happened was that after the match, after the trophy ceremony, after all the hoopla of honoring Nadal for the win he deserved, Federer waked away from an interview for NBC with Bud Collins backstage, after all his other obligations were done! Give it a rest, you don't know anything.