Naruto &Sakura

In the fight against Orochimaru at around episode 30, Sakura was in a confused state as Sasuke was injured and she could not do anything. When Naruto showed up, she was relieved and acknowledged that Naruto is strong. This showed that Sakura did trust Naruto.

At around episode 83, when Naruto left to train with Jiraiya, Sakura went to bring some food for Naruto. This showed that Sakura cared for Naruto, and not only Sasuke.

In episode 108, Sakura expressed her concern to Naruto over Sasuke's recent behaviour.

In the anime episode 138, Sakura was jealous that Naruto cared for Sasame instead of her but Naruto was too dumb to realize that.

In the Manga around chapter 261, Sakura showed how concern she was over Naruto, she was so worried until she cried. However, Naruto shrugged it off and said to Sakura that she should not worry as he would save Gaara. Is he dense... or what?