A fight with Gai is below the current level of fighting, I reckon.

Quote Originally Posted by DarthEnder
It felt to me like the part she was saying out loud at the beginning was Bullshit, but after she held onto him and was talking in his ear where the others couldn't hear her she was talking more about her real feelings.

So the part about Naruto being a hero and Sasuke being a criminal was lies, but the part where she realizes Naruto has always been there for her while Sasuke keeps moving away from her is the truth.
I don't think a romanticistic person like Naruto would settle for a I can't have him so I'll settle for the safe second choice type of love. If he can't win Sakura from Sasuke fair and square, he'll go without. That's why he didn't believe for a second what Sakura said, even if Sakura actually had developed some genuine feelings (I'm sure she has some, more mature and far less burning kind of feelings). Just looking at Sakura's face during the scene gave me the impression she was giving up a dream and settling for something less but more realistic.