He carries a weight around like a yakozuna, he likes all his possession to have semblance of his podginess - big house, big car, inflated ego, fat bank account…except his woman of course. His heart can only accommodate a woman with a size 8. He’d be totally embarrassed if she got to a 12; and would quickly discard her at size 14. He’s appalled by excess flesh…except his.
Mr. Flab finds Miss Trim extremely gratifying. Deep down inside his chunky heart he wishes to look like Desmond Elliot. But wishes aren’t horses we can ride; so he lives his self-worth through Miss Trim. His ego is satiated and that is as good as he can get to being Mr. Elliot.