all things considered, there's still the matter that Payne needs Naruto for his mega-deathstar-beam, and naruto can't agree to that.

even if neither of them can fight again right now, they're bound to fight one day.

that is, unless Naruto can somehow convince Payne that he can stop the circle of violence, maybe reveal that Madare is the real villain guy, and make a commitment to stop him. which coincidentally, turns out to be exactly what Payne was planning to do with his death star ray.