You are missing her (psychotic) point. Yes, she has changed her feelings about those foods. She used to believe they were harmful to her, and that her choice was stark; lose weight or die (her words, and she assured us that "die" is not an option)
But now she realizes that was just the patriarchal death kulture talking. Men (we will assume them all to be white) want her to lose weight so they can subjugate her and enslave her as they do all women, Diet is a form of abuse, no better than lynching a woman or burning her alive at the stake. Calling three double cheeseburgers "bad food" plays into the hands of this hierarchy and implies that dieting might result in a better quality of life, which is wrong wrong wrong.
She gets it now. Eating 5000 calories at a time is not unhealthy. It is a celebration of the acceptance of herself as a big beautiful fat woman. She cannot help that she was born 450 pounds, and it should be a protected class. Eating is a revolutionary act; Chantal will never be kept down by the Man or any authority figure; she has decided to love herself. What says love more than giving in to every impulse, and eating so you can no longer walk? Some day, fat girls around the world will point to her as an Inspiration, which is all she has humbly ever wanted. Some fat girls already do.