There's a scene of that too? We have so
MANY moments!!!

Yes, there are plenty of scenes, which is why fans are convinced Kishi is serious with NS. About that scene, Naruto and Sakura were leaving the playground when they bumped into AU! Team 8. Kiba was the one that started it and Hinata got really mad at Sakura, threatening her that she will kill her. Sakura turn blue and Naruto tried to stop, but Hinata then got mad at him for siding Sakura and threatening him to kill him. As for Shino, he was putting the pieces of puzzle together as he said, "If a boy and girl are alone in the playground, then that would mean that they are...," but before he got to finish, Hinata interrupted him by yelling, "They're escaping!" Shino said that he hates to be ignored.

Not to mention Naruto's parents. Kushina teases Naruto about Sakura. It's one of those images with her making a face of "Oh~ You have a girlfriend~

"
That moment when a lot of people actually think they're in a relationship automatically based on how they act yet neither Naruto or Sakura realize they even come off that way. The adorable complexities of NS.

It's kind of funny how Kiba just bluntly guessed they were on a date while Hinata just went full-on Yandere, threatening to kill Sakura if she stays with him.
AU! Hinata is the essence of the NaruHina fandom lol. 
It's interesting, clearly implying that AU! Sakura and Menma had something between each other too.

I do wonder if that's a shot to NH fans from Kishi. It does seem like it in some way, but who knows. Yes, it does imply that Menma and AU! Sakura may have a special relationship, but she wasn't present, which I think Kishi purposely prevented it. Even in the anime special made her not mentioning Menma. I wonder why.
Bolded: Always good to hear her care factor for Naruto is growing

.
Could this be more out of guilt though due to how she treated Naruto in part 1?
Actually, it's not. In the movie, Sakura is with Naruto and witness every moving moments from him. She saw him being frustrated with Tobi because his parents are alive, toying with his emotions. Sakura was giving him advices on parents and a child, like be highly respectful, even they're not real. Sakura saw his transformation from disliking his parents to accepting love. She was happy and touched. When she acknowledged Naruto's strength of loneliness, she wanted to tell him that it's time to go home, but before she knocks on the door, she saw him enjoying life with his parents. She was happy but sad because this will hurt Naruto a lot. Then, the famous fence scene.
There's a video of it. Sakura wanted to tell him to go back home, but it will be hard. When Naruto arrives, he wanted to hurry back home, so Sakura put up a fake happiness, but Naruto realized it and tried to make it sound like they're only taking advantage since it will take to get back home. Then, Sakura asked him if he's happy to be in AU!, which Naruto got caught and couldn't put up a lie. You can only see their bottom half face. Sakura smiled and Naruto felt guilty. She left and Naruto, according to one trailer scene, felt hurt to leave Sakura. Then, what a shock, an invasion began. The rest is history. You can say it's guilt for part 1, but remember, they're in an illusion world and they both wanted to go back home. Besides, that guilt for part 1 Naruto is already covered a long time ago.