Gillian Flynn said this quote

“ The Amy of today was abrasive enough to want to hurt, sometimes. I speak specifically of the Amy of today, who was only remotely like the woman I fell in love with. It had been an awful fairy-tale reverse transformation. Over just a few years, the old Amy, the girl of the big laugh and the east ways, literally shed herself, a pile of skin and soul on the floor, and out stepped this new, brittle, bitter Amy. My wife was no longer my wife but a razor-wire knot daring me to unloop her, and I was not up to the job with my thick, numb, nervous fingers. Country fingers. Flyover fingers untrained in the intricate, dangerous work of solving Amy. When I'd hold up the bloody stumps, she'd sigh and turn to her secret mental notebook on which she tallied all my deficiencies, forever noting disappointments, frailties, shortcomings. My old Amy, damn, she was fun. She was fun. She made me laugh. I'd forgotten that. And she laughed, From the bottom of her throat, from right behind that small finger-shaped hollow, which is the best place to laugh from. She released her grievances like handfuls of birdseed: They are there, and they are gone. ”