Tubbo saw you, Ranboo, the black and white enderman of the server. He snuck up behind with a diamond sword and tried swatting it at you. After the breaking up sort of thing you became enemies. A ram vs an enderman were short odds for Tubbo but Tommy and the server are with him. You do have Aimsey and Charlie - Slimecicle though! Two quite powerful individuals. "Shoo, enderman! Or we'll have some ender pearls in our chest soon!" Tubbo scoffed.