As a Brooklyn parent who's not wealthy but manages OK, and who happens to be turning 40 in a couple weeks, I offer a giant middle finger to this phony-ass "Real Housewives of Brooklyn" shit. This is not "typical behavior" of bored working or stay at home mothers. It doesn't even sound believable. Maybe it would have sounded more believable if the second half of your post didn't mention that you just happen to be publishing a book soon that just happens to be just like the supposed real people you call your friends. Wasn't your last book pretty much proven to be largely bullshit? How much mileage are you going to get out of this "bored aging mommy" thing?
And, because it needs to be stated once again: that whole "when you're 38 you're grateful if a man says he'll have sex with you" thing is really fucking repulsive.