The premise of what I'm going to say are:
1) Sakura really loved (and maybe still loves) Sasuke, and that it wasn't a childish crush (Ino's was, you can see the difference by yourselves).
Instead, Sakura kept chasing Sasuke even while and after his betrayal, to the point to confess her love to him! If that was only a crush, then the only real pairing in Naruto is TsunadexDan... Even Sasuke himslef was a little less cold than usual at that point, and said thanks to Sakura, since he understood that she really loved him.
2) Naruto never really loved Sakura in a romantic way, and was attracted by her only because she was the first girl he could interact with and that caught his attention. Someone pointed out to me that Naruto, when was henged like Sasuke, talking with Sakura thought that he really liked her because she searched aknowledgment like him, but I think boys mature later than girls, and that that was a bit childish from Naruto's side... love is a bit more complex, isn't it?
If he really loved Sakura, he would have been, if not be less willing to take Sasuke's back for her, at least sadder, and shed a tear or two. Even more since we saw in plenty occasions that Naruto is really emotional. His reaction to Sakura embracing Sasuke in the hospital was sad, but his reaction a bit more fast for someone really loving someone else.
Who says that "true love is giving without asking nothing in return" is wrong imho, since that could only come from a grow up person with much more romantic experience than a 12-13 years old boy (I love Naruto, actually he's my favourite character, but that is expecting a bit too much, or to say it better, too early from him).
Of course, Naruto still really cares about Sakura, but he really cares about Sasuke and many other people as well.
3) I'm a great NaruHina fan. I think that, for their personalities and life experiences, they would be perfect together. I don't care about the fact that a relation between them seems strange at this point of the manga, since it isn't ended yet and many things can happen. Furthermore, they are still 15! How many people found the true love of their life at a such early age? Furthermore, Kishimoto left so many hints about NaruHina throughout the manga, that something more between them MUST happen.
Kishimoto left many NaruSaku hints too, but spending time on the development of the relationship between two main characters is quite normal, isn't it? But saying that because they are in the same team they can know each other so well to develop romantic feelings is too much... boring, too. NaruSaku is like falling in love with your childhood friend. Sometimes it happens, but usaully one searchs for people outside his/her family/close friends for the "other half"... that shows maturity too, since one can't live forever in the same place or with the same people, not for me, at least.


After these premises, I think Yamato was going to tell something like: "In reality, you already do a lot for Naruto only being beside him", nothing more.
I think Sakura's feelings for Naruto are ones of deep affection, but not romantic love. If you see Sakura's tastes, she always was more attracted by dark, calm and cool-looking guys, and Naruto is the completely opposite of that.
Think about when she saw Naruto the first time after the time skip, she said something like "he looks so cool/mature now" or something like that, then Naruto ruined her expections with his perverted jutsu! Sakura's herself said that his beahaviour shattered all the beautiful feelings she was having for him.

She can love some sides of Naruto's personality, that's true, but she still searchs for another type of boy for romanic love, in my opinion.
If not, why she was never attracted by Lee even if he was similar to Naruto sometimes, and he showed to care about her as much as Naruto, protecting her when he was around her?

If not Sasuke himself, I can only see Neji or even better Gaara (since imho he has the sides of Naruto's personality that Sakura loves, but in a cooler and less loud way) in a pairing involving Sakura (personality-wise, at least, plot-wise both Neji or Gaara hardly will become Sakura's boyfriend).

Sakura + Naruto is like having two loud and emotionals types together... a mess in my opinion. O__O
Romantic love is more about seeking what we lack, it's instinctive, but they shares a lot if you really see their personalities.
Instead, Hinata is still a caring person, like Sakura, but she is much more calm, she isn't the type to easily cry like Naruto or Sakura do. She is the type to soothe people with words, while Naruto usually run head on like a maelstrom into others' lives, and Sakura is like a double knife with even a malicious side when she talks (do you remember like she managed to punch Sai?).

I know a thare are people who thinks that Hinata, in a romantic pairing with Naruto, would be overshadowed by him. Actually, the word "hinata" means "illuminated"... foreshadowing by Kishimoto? Naruto isn't the type to overshadow people, he's the one ignored for most of the time, and he's the type to "give light" anyway.
Even in the scenario of Naruto becoming Holkage and Hinata becoming his wife, what is the problem?
She never expressed the desire to lead the Hyuuga family and she could do both of the things anyway.
Finally, I think there are two types of people: the ones who want/need the others to aknowledge them (like Naruto or Gaara), and the ones who only want to become a little stronger, but more to prove to themselves that they can if they really try, than to the others (like Hinata or Neji). Both these types of people can become interesting and great, in their own ways.
The moon isn't less beautiful than the sun.



P.S. If it wasn't clear, I'm not bored with Naruto, not at all, or I wouldn't spend my time to write post like this one.