His retirement video. Though it didn't last, it's still sort of heartfelt.
His Solitaire video, in which he announced his absence was because felt as though people only watched his videos to spout memes and 'feel-good' messages for the sake of irony. As a result of the latter, he also felt both his and Lime's personalities were being laughed at, and made them seem abnormal or out of place. Considering how cheerful he is, it's kind of sad to hear this, especially considering how it's affected him.