The ruler likes him so much that he needs Gulliver to wed one of his little girls. Gulliver's stopover in Luggnagg is the aftereffect of a bureaucratic mess. He's not permitted to leave the island until the point that he has gotten official authorization to do as such in the wake of meeting with the Luggnaggian King, so Gulliver employs a translator and does only that. This current King's conduct is yet another case of the sort of irregular remorselessness an excess of energy rouses in a man.