I'd just like to indicate, with a list of pages from the Naruto manga in Part Two, how Naruto and Sakura's relationship has grown stronger throughout the series. It seems to be more, mutual, but unspoken. I think it's pretty difficult to deny the existence of attraction and feelings from both parties.
Let's face it, one of the main reasons Sakura didn't like Naruto in Part One, was because no one did. The upbringing of the younger ninja led them to shun Naruto, to mock him, and lead them to having a generally low opinion of him.

Since then, she's seen him grow, his determination. She knows his secret. She understands him.

As shown below:

Naruto 245 page 15 | One Manga

Naruto 260 page 12 | One Manga

Naruto 261 page 02 | One Manga

Naruto 261 page 06 | One Manga

Naruto 261 page 08 | One Manga

Naruto 261 page 09 | One Manga

Naruto 278 page 11 | One Manga

Naruto 278 page 15 | One Manga

Naruto 289 page 08 | One Manga

Naruto 291 page 13 | One Manga

Naruto 294 page 12 | One Manga

Naruto 295 page 17 | One Manga

Naruto 296 page 02 | One Manga

Naruto 296 page 05 | One Manga

Naruto 296 page 06 | One Manga

Naruto 296 page 07 | One Manga

Naruto 297 page 10 | One Manga

Naruto 297 page 11 | One Manga

Naruto 299 page 03 | One Manga

Naruto 299 page 07 | One Manga

Naruto 299 page 11 | One Manga

Naruto 299 page 12 | One Manga

Naruto 307 page 11 | One Manga

Naruto 338 page 04 | One Manga

Naruto 343 page 07 | One Manga

Naruto 343 page 08 | One Manga

Naruto 383 page 02 | One Manga

Naruto 408 page 12 | One Manga

Naruto 429 page 15 | One Manga

Naruto 430 page 12 | One Manga

Naruto 430 page 19 | One Manga

Naruto 438 page 01 | One Manga

Naruto 438 page 10 | One Manga

Naruto 438 page 16 | One Manga

Naruto 442 page 01 | One Manga

Naruto 443 page 08 | One Manga

Naruto 450 page 05 | One Manga

Naruto 450 page 06 | One Manga

Naruto 451 page 02-03 | One Manga

Naruto 451 page 07 | One Manga

Naruto 452 page 14 | One Manga

Naruto 453 page 14 | One Manga

Naruto 457 page 11 | One Manga

Naruto 457 page 12 | One Manga