Anger makes you fat and keeps you fat!
Mimi was successful with diets when she felt strong and an equal player in the world. As soon as that fragile mood was threatened by words of conditional love, put downs, and a dismissal of her opinions Mimi felt naked and vulnerable. Food was the comforter and the weight she gained became a shield against the abuse. The thicker the armor the less chance there was of being destabilized and out of control. The armor plating was solid enough to deodorize the stench of her own chaotic and stinky feelings. The armor did such a good job that she couldn't distinguish between her own mess and that of others. It also bypassed her emotional thermostat so that she never knew when she couldn't take any more of other people's trash. Food was the best way of resetting the switch and lowering the temperature.