New method to get locked in game... Moving into another town with a immobile partner and you're being fit. Then change beds.
The reason for this to happen is because when you are moving to a new town while being slim, and your partner being immobile, the new room that you get when moving towns has a tiny space and you can put only one bed, you have "Reinforced Bed" and "Bariatric Bed", but everytime you try it keeps saying "You are too small to fit in bariatric bed", "____ is too big to fit in reinforced bed" and "You can only have one bed in each room".