There's a long moment where Amelia stares at the apple where it landed on a nearby table, where she debates taking it and throwing it at the back of his smug head. Debates yelling and screaming and cursing at the top of her lungs until her voice is raw. But then she looks up at Jim and Verity as they walk away, sees them close and comfortable...

And she sees something completely different.

She sees distant family members, distant friends. Close, comfortable, happy... together. All those things she never was, and apparently never will be. Not with them, not with anyone.

She picks up the apple and takes a bite, completely ignoring the tears in her eyes, the physical pain that comes from the action. And once Jim and Verity are out of sight, she'll run, apple in hand, as far and as fast as she can.