The lies have stopped in a way,” Moffat tells us of their relationship. “She lied to him about all sorts of things, he lied to her in the sense of pretending he’s been aloof from her… It all comes crashing to a halt when he says, “Did you think I cared for you so little betraying me would make a difference?” Just about as big a declaration of love as you can get. We’re not pretending anymore. And when he just begs her to come back on the Tardis last Christmas, that’s where they are. He’s grabbing her hand and they’re running in the Tardis and they’re having the time of their lives.