This troper's ex-girlfriend was a slender woman who was not especially interested in gaining weight. When she dated this troper, she was a little confused by my usual preference for bigger girls and girls who stuffed themselves. But she was happy enough to "fake" a willingness to gain weight. Including occasionally ''actually'' stuffing herself. We broke up when her family moved away. When I ran into her again, she was
at least a hundred pounds heavier. It seems that all that time we spent together, she'd been slowly getting to like the idea of giving up diets forever and so she stuffed herself often, even after we broke up.