Well, the argument I'm having problems with is that Sai misrepresented Naruto's feelings by implying that Naruto was trying to save Sasuke out of desperate love for Sakura, and when Sakura confesses her feelings and tells him that the promise doesn't stand between them anymore, he says it has nothing to do with the promise and drops the promise like if it was nothing to him.
Actually, that's quite a good observation.
Sai didn't misinterpret Naruto's feelings. Sakura told Sai that Naruto would do anything for Sasuke, who he deems as a brother. So Sai knows that Naruto is trying to save Sasuke for himself too.
The main point is that Sai believes that the promise was a burden because it was limiting Naruto's desire to tell his feelings to Sakura. The promise was a burden in that sense. Sakura doesn't really understand the extent of how much Naruto wants to express how much he cares for her but can't. She just understood from Sai's words that the promise was a burden. I doubt she understands fully to WHY it's such a burden.
That's my opinion anyways...
Edited by ramenanmitsu, 14 August 2014 - 01:55 AM.