My belief is that Sakura has matured greatly from the ignorant fangirl we saw when she was introduced. Now she is closer to Naruto, accepting of his faults, caring for his safety and well being, and most of all, falling in love with him, a love that is true. I look forward to her finally admitting her feelings and Naruto believing her. I like to think she meant every word of her confession in the Land of Iron.