Just start the attorney process. You're not committed to anything but the retainer by doing it. She'll see you mean what you say. It's actually reassuring to do it because you'll be dealing with known variables.
On the off chance she's calling your bluff, you should do it.
I'm sorry you're in this place. Best to you.
Me42, H40 D12, S8, S7 A revealed: 7/13 Sep 4/14; Agreed to D 1/15