someone explain please am too dumb to understand this (╬￣皿￣)凸

Huimin created this fake world out of desperation and Iheon got dragged in it. Since we don't know why or how it was created we can assume it has run it's course, maybe because Iheon now understand everything better or just because it couldn't hold, but now both of them will return to the real world and back in time, Huimin as this new persona that he created to avoid his trauma and Iheon now knowing the full truth about Huimin and the consequences of his actions.