Oh this trope has such a specific emotional flavor, doesn't it? It's less about the money and more about the quiet seismic shift in power dynamics. In a lot of the domestic tension novels I read, the protagonist who gets the inheritance post-divorce isn't suddenly shopping for yachts. They're sitting in a cold, quiet lawyer's office, signing papers that feel like the final, surreal stamp on a failed marriage, but now with a zero added to the end of the settlement.
The handling really splits along genre lines. In a comeback or revenge arc, it's fuel. It's the financial bedrock for that glorious transformation—maybe moving into a penthouse the ex could never afford, or funding a business that outshines his. The money becomes a character, a silent partner in the 'look at me now' narrative. But in more healing-focused stories, the inheritance feels heavy, almost tainted. It's a constant reminder of the life built and lost, and accepting it is this messy, conflicted step. They might donate a chunk, or use it to create something entirely separate from the past, like a scholarship or an animal shelter. The act of redirecting the money becomes the real act of acceptance, not of the wealth, but of their new, independent self.
I always watch for the moment they tell the ex. That scene is the entire thesis statement of the story.