Just a random thought: I've been poring through thread after thread on this board, and something caught my eye: Never be a Plan B, the longer you are, the longer the purgatory lasts.
It made me think of a time where we had a relatively large fight - I was in the wrong, she caught me in a very dumb lie the details of which are not worth getting into - but when she said something along the lines of "I can't ever trust you, it's over", I literally did a 180 in the street and started walking in the other direction. This called her bluff and she ran to me, saying she was sorry she said that.
Given that and above maxim, wouldn't the logical continuation of that line of thinking be to serve *her* D papers as a consequence of her asking for a separation? It sounds risky as hell, but it's same principle, right?