Photo: Gilbert Flores/Variety via Getty Images Ariana Grande and Ethan Slater’ s relationship has been, since its inception, a point of controversy. We can’t definitively say what the timeline was, but, to many online, it sure looked like Slater left his wife , who had recently given birth, for Grande while filming Wicked , in which he plays Munchkin man Boq and she plays good witch Glinda. But what we do know for sure, after seeing part one of Wicked, is that they have chemistry. It’s true!