"There probably is," Amy agrees, because in all of time and space, she knows that there's always reasons why. It's one of the old reliable things that she clings to, because there has to be a reason why she's here, why Rory's gone, why they can't see the Doctor ever again. Even if she doesn't understand it, she has to believe in the why.

"Come on," she encourages. "I hate walking back alone, even if I like being here alone. Come keep me company," Amy coaxes, which is more of a demand than anything else.