"Raggedy Man, goodbye."
A single swift blink of the eye and the stone cold hands of fate send her to the swirling depths of time, and to the man she will always love.
Except the hands of fate are cruel. The angel does send her to Rory, but it also sends her to the moment he dies.
He lies in the middle of a dark road, barely conscious, but just alive enough to know she's there in his final moments. Rory can barely manage a smile as Amy whispers that she loves him, he can't even try to calm her as the tears start to flow. There in her arms, he takes his final breath.
His burial is short, but so long at the same time. The moments where his broken body is lowered into the ground, time seems to stretch out for a million years. This endless second is when she makes her decision.
"Don't let him see the damage."
Hidden away from the rest of the world, in the explosion that is New York in the 1930's, Amelia writes her story. She writes about her daughter, and Doctor, and Rory through her tears until, eventually, it doesn't hurt anymore. She puts off the inevitable ending and writes more books about everything that she misses. In the printed pages of all thirteen of her books, she relives the adventures and the heartbreak and the beauty of all that is lost or forgotten.
Finally, six years after Rory died, Amelia finishes her last book. Every painful, memory-filled chapter of "Melody Malone" is written and now all that is left to write is her final farewell. She knows what she has to do and she hates every black ink word of it.
It was always the Doctor's first rule of traveling with him. It's funny to Amy how rules that once puzzled her become so clear when they have to be enforced. She has to for his sake.
So Amelia lies. The after word is nothing but false hope to keep her best friend alive. Reaching across all of time and space, she comforts what is left of the wonderful madman she once traveled with. She knows she couldn't really ever tell him what has happened. So little Amelia Pond does what she has always been best at doing: hiding the damage.
Word after word she writes her own happy ending in a way. The life she could have had with Rory if he was still here. It's too late for that though, so she'll have to do with the next best thing.
The night her book is published, Amy skips dinner and runs out to a quiet corner store she's had her eye since she wrote her after word. She returns with no bags or packages, but a single silver killing machine. Amy sits at her lonely kitchen table for two hours, just holding the revolver in her hands and thinking. Her mind is already made up though, it has been for a long time.
Amy raises the gun to its resting place at her left temple, smiling softly to the ghosts in the room. Then her finger pulls the trigger and all is dark except for the splash of crimson blood that melds with her fiery hair. The man that waited thousands of years for her will wait no longer. They are finally together in death, never to part again, no matter what.