But we'll just forget all that because he stuttered on one line because he's not certain himself. Naruto knows he loves Sakura, he wants to end up with her, but he also just wants her to be happy. He fully believes she loves Sasuke to no end, he can't express his feelings because of his own standards, and just saying it bluntly in front of her to his father would be anti-climatic... Not to mention they're just friends at the moment. I guess he could of said there is someone like his mom that he likes, but oh well
I think Kishi didn't want to make it obvious. He let the girl part incomplete.