really? I guess you wanted Naruto dead by Sakura's monstrous strength, just like in ep 373, when Sakura punched those Juubi clones, when you say masochist, right? He was lying about her being his girlfriend in ep 372, so why you think he was scared?
BTW, Sai doesn't know how strong bond are until ep 238 came out. And another thing, you do know language like that is strictly prohibited. Naruto knows that he will saved Sasuke. Perhaps you should listen to Itachi more often.
Naruto knows that Sakura loves Sasuke and nothing can changed that.