Luna can see Sansa's clearly bothered by the dilemma too, and it is almost comforting to know someone feels similarly. But if they're not going back she has to make sure they stay safe (or at least Sansa ought to) and so Luna tugs on her hand lightly, more of a reminder than a lead. "Let's go. We should find somewhere that's safer than this." Her voice is carefully measured and directed, her best "obedient servant" mask narrowing down the world to just them and the desert ahead.