Hi Handle.
Time-wise, it sounds like this has been going on for about two-thirds of your marriage, and longer than you've had children.
I recently asked her how I can better help or handle situations where she's triggered and starts getting verbally abusive and irrational... .whether it's walking away or just leaning in to allow her to express her frustration and she told me there was nothing I could do.
Obviously, this is frustrating. It's like a lose-lose, because you're getting a negative reaction whether you walk away or listen.
If you're up for sharing some more detail, I'm wondering how these interactions have been typically playing out past the stage you're describing. For example, what your reaction has been after she says there's nothing you can do.
Welcome to the forum. Hope you hear back from you.
-ngu