Ah come on, not you too!!! What exactly did you want Naruto to do in this chapter? Threaten Sasuke?
They are gonna fight now anyway.
Also Sasuke did not 'kitten' on Sakura's character. He let it be known how he felt about her. And it helped to kill off SS hopes.
Because when it comes to Sasuke; Naruto doesn't defend his woman. And then if he "does" he says something insignificant and moves on like nothing happened.
Sasuke can do anything to Sakura right in front of Naruto's eyes, and Naruto will go "Oh it's ok Sasuke. You're still my best friend."