Complex sentence: Shino says that the present Hinata is not the one in the past saying that she had been developing and flashbacks to when they were doing their hobbies and when he asked what was her hobby.
Split into simpler sentences: Shino says that the present Hinata is not the one in the past and says that she has been developing. It flashbacks to when they were doing their hobbies and when he asked what was her hobby.