How old are your girls now? Are they still 10 and 8 or is that outdated?
In a way it's a shame they're not older. If they were teens you could make an argument for waiting until they're out of the house before marrying and blending families - that would surely be easier all around. But I'm guessing that's not an option at their ages.
Wondering why your one daughter is crying for her mom now all of a sudden. You could be right, it could be PMS. But have your explored other possibilities? Is she maybe freaked out about the pandemic and worrying about her mom? Is she saying the same thing to mom about you when she's there?
Or, now that mom has met OW, is mom maybe messaging her that she'd like you back, or just showing signs of being sad about losing you as Plan B? Is this causing daughter to realize that no, her parents aren't ever getting back together? Or is she missing something else at home other than mom, like a friend next door or a pet? Or does she feel she needs to be home to "protect" mom from her boyfriend in some way? Or is she feeling like mom isn't giving her any attention when she IS there?
I'd try seeing if you can gently explore what this is really about.
