Here is a man who actually did this;
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It's very interesting how when he is fat he has actually become addicted to the food. He has lost all the motivation that used to keep him fit. It's actually quite amazing that he escaped from the trap he set for himself.
You know that it much more difficult people who have been fat for years rather than a few months. People who don't have a history and identity of being a fit person with a 6 pack.
The woman he wanted to bring back with him from being fat managed to talk herself out of it. She said she did not want to be valued by how fit or fat she was. So she justified staying fat as a form of validating herself as worthy. Losing the weight would be saying that all the time she was fat she was worthless. It's a bit of a mind fcuk but that's how she rationalized staying fat.
I think this is good news for Feeders and Feedees. Once you get in the habit of being fat then you just continue to get fatter with ease. :-)