This is the most hopeful thing I've heard since . . . well, since Amanda Gorman, actually. But seriously, it's the kind of change I'm looking for and seeking ways to write about.
When women (and other genders that aren't cishet male) achieve full agency, so that their choices are no longer forced by economic need toward uneven partnerships, the monolith of marital monogamy will start to topple, and honesty will start to be an option for us all.