>>212123305
He had intense survivor guilt after Season 1. The only way he could relieve it was to rescue a new season of players from the game. When that too failed, he went catatonic, killed a guy who represented the side of human nature that deflated his rebellion, then killed himself to atone for everything. Gi-Hun went on a spiritual journey and learned what he wanted was impossible in this realm of existence because we live in a fallen world.