I'm Sorry, but These 9 Things From the Game of Thrones Finale Just Don't Make Sense

Yes, I have another Grey Worm nit to pick: why do the Dothraki follow him and the Unsullied army on their voyage to the Isle of Naath? Like . . . what is the plan here? Do they all answer to Grey Worm now? Is he their unofficial king since the troops refused to bend the knee to King Bran? It seems weird that Grey Worm would allow a band of fighters as unpredictable as the Dothraki to mix with the Unsullied. It also seems weird that the Dothraki wouldn't choose to immediately dip and go back to their desert home of Essos to live freely and on their own terms.