Silent consent is still consent. Sakura implying that Naruto only pursued her out of rivalry is indeed awful, but if it wasn't true Naruto would have said something.
I would also like to point out that, aside from the parting scene and the rescue scene, there is absolutely no indication that Naruto has any romantic interest in Sakura. This coupled with the rumour that Naruto was originally supposed to agree with Sakura's statements only further proves that the rivalry thing is legit.
I'm not trying to defend Sakura. Her NH cheerleader stunt comes off as forced and self serving, but at the same time Naruto's behaviour isn't much better.
I still love NS though. It's obvious that this is not the real Naruto and Sakura. This is nothing more than SP's attempt to undermine NS as a legitimate pairing. The funny thing is that even when twisted to fit the agenda of SP, the chemistry between Naruto and Sakura cannot be denied.
Run, live to fly, fly to live, do or die
Won't you run, live to fly,
fly to live, Aces high