Idk man. We know he isn't even close to Hinata at the start of the last. She's still unknown to him from the spoilers. So that's teo years of watching the girl you've loved your entire life completely blow you off for the dude you fought and bled to bring back from the brink of self destruction. He's gonna struggle with knowing he's the reason they can be together, a mix of happiness for her and sadness for himself.
Hard to be close friends and be able to let a girl go you've loved at the same time. I hope he takes a lot of time and space. I hope he needs it. I don't want to see him 100% okay with it right of the bat it's just not realistic for someone who's lost someone they love. He'll put on a strong face and be happy for her, but inside he'll be struggling each time he sees her face, hears or sees something that reminds him of a moment he thought she might reciprocate or care about him that way, it's going to be rough.
This is the state I want to see Naruto in at the start of the last. A little human, vulnerable and wounded. And I want to see Hinata bring light and love back into his life.
I agree, if NH is it, Hinata better earn it. If she can prove herself then I'll be okay.