You have no proof its vindictive. It very well may be and probably was more self protective.

Because she didn't. She merely mentioned it. You have to admit, its a good move if one is being threatened or a desired divorce is being stymied.

And given the husband in this scenario is a MAGA, it's not a stretch at all to believe hs is also or is in alignment wuth Christian Nationalism and we all know how Christian Nafinalists treat women.

Given the circumstances, the more obvious scenario is that she's merely protecting herself and securing that divorce rather than being vindictive.