This isn't over
There is a saying that time passes by very quickly whenever you enjoy yourself, but whenever you wait for something to finally happen time passes by very slowly. Over the past six years, Kakashi had to experience the later. Although it had been only six years, those years seemed like six decades to him. He had left Konoha in order to forget about that six-year-old girl there, who reminded him so much of his late girlfriend. Actually Minato had confirmed his suspicions and one day before he had left his hometown he had heard about little Sakura being his late girlfriend. However, she was his late girlfriend without her memories, so she was not his late girlfriend, which did not hinder him to be reminded of his Sakura whenever he had seen that little girl. And even after six years, this topic was still too confusing for him to think of it for too long.
In order to avoid thinking about her, Kakashi had been reading Jiraya's latest novel - from his Icha Icha series