"Bored to death, are you?" Amy twists a strand of her hair around her finger and smirks at him. "You always told me and Mels that was medically impossible."

Of course it's not really Amy; she's been locked in the Pandorica for the past thousand years, waiting for her younger self to bring her back to life. But he's not going to hold that against the hallucination.

The Doctor warned him that he'd go mad, and he suppose he has. But if that means that he has even a hallucinatory Amy to keep him company, he's not about to complain.