One story could be in a fictional world where a magical spell goes wrong and the wife starts growing uncontrollably. The husband has to quickly find a way to reverse the spell. He embarks on a journey to find a wise old wizard who might have the solution. All the while, the wife is getting bigger and bigger, causing all sorts of chaos in their small village as she accidentally knocks over buildings and trees with her new - found size.
There could be a story where a strange phenomenon occurs in a particular area. The wife is affected by it and starts growing. The husband is initially shocked but then realizes he needs to support her. He helps her deal with the physical and emotional changes. They face challenges like finding clothes that fit her and building a house large enough for her. But through it all, their love for each other remains strong and they learn to adapt to this new situation.
In a sci - fi version, perhaps there's an experiment with a growth - enhancing serum that the wife accidentally consumes. As she grows gigantic, she and her husband have to figure out how to adjust their relationship. The husband, being much smaller now, has to use his wits to communicate with her. They might use technology to create special communication devices so they can still interact and work together to find a cure for her abnormal growth.