Was the scene on the island halfway through ep 6 a dream or a flashback? It starts when we see Xiaozhi lying down to go to sleep. His arm starts reaching out, and then he's reaching for and holding hands with whose hand we must assume is Chen Li's. Is that handholding, and the nighttime chase through the old buildings on the island and 2 kisses a dream or a flashback? It being one or the other completely changes one's entire perception of their relationship and what happened over that summer on the island.