@Kromwulf that's not the framing at all though, and there's a distinct difference between boyfriend on girlfriend violence and what is happening here. There's also a difference in scale and severity between these two and normal humans to keep in mind. This was basically a light argument.
@legendaryswordsman it's not that illogical, there are weights each person is more naturally suited to, that your body will return to easily. it is a bit exaggerated but some people can put on a lot of weight in just a few days of lax standards- it's a rough way to live imo.