Could someone please enlighten me on this? I just feel that it is so not like Naruto to give up easily. If that's the case, then the promise shouldnt be called Promise of a Lifetime anymore

I'm sorry if this has been discussed previously. Thanks in advance.
Naruto has not given up on the promise, yet. The thing is that Naruto has somewhat changed his deep convinctions.
After hearing about Sasuke's sins he faints, which shows us that his narrowmindedness prevented him from letting go of the naive picture he once had of Sasuke. ONLY because he wasn't able to replace his naivity with possible worst case scenerios, does he seem to be in that shocked state of mind.
After saving Sakura and confronting Sasuke he CHANGES the promise to something that should be MORE likely to have an impact on Sasuke >talking with their fists lol^^
Naruto said they both gonna die and that Sasuke should let his anger out on him.
It's Naruto's way of showing Sakura that he's prepared to fight to the death with Sasuke.
I doubt Naruto would want to become Hokage if he already planned on dying along Sasuke, so his statement is NOT absolute (we all know protagonists don't die too often).
He shows Sakura that there's no way he can convince Sasuke without the use of power. He also tries to cope with the fact that Sasuke is a criminal by now.
I suppose Naruto knows that it's just a temporary solution. Even though Naruto said they are both gonna die, it depends on whether or not Sasuke kills innocent people or tries to attack Sakura again.
Same goes for Sakura, she's already changed her opinion about Sasuke drastically. Naruto shows her how to cope with the facts i.e. not switching from 'Sasuke friend must love! >>> Sasuke evil must kill' straightaway, but creating a temporary solution, which INCLUDES the possibility of them BOTH dying.
And still, Sakura is relieved after Naruto declares a coming all-out fight. That's because Naruto does not go back from his promise but ALSO does not want to chase Sasuke recklessly like Sakura does.
Both Naruto AND Sakura don't have an EXTREME attitude towards the retrieval of Sasuke anymore. It's more down-to-earth.
What's also important is the fact that Sakura tries to kill Sasuke herself AT FIRST, but is ACTUALLY happy that Naruto saves her AND relieves her of her psychological strain.
Naruto does the exact same thing. At first, he is shocked that Sakura talks about being mature and giving up on a criminal.
He even says to Sakura that he hates people who lie to themselves.
But, Sakura is the FIRST ONE to take action, while Naruto is the only one to be affected by Sasuke's behavior in such a strong fashion. So Sakura seems more confident than Naruto to me.
That's why Naruto should be thankful to Sakura for bringing the Sasuke topic up for discussion.
Edited by rastaman, 30 May 2011 - 03:08 PM.