Sorry to hear the news, I know how bad it hurts. I would suggest getting a L so you know your rights. I stalled on my D papers for a while and then got a L and was glad that did.
About your update above. I remember having good times after hearing about the OM. She denied, but I think she was just lying to herself because it may have only been an EA.
In my opinion your W is enjoying these times as a FRIEND and thinks that this is how things will be if D. The LBS takes this as signs that the M can be saved. My W and I did the same thing. She is now my XW, but acted the same way to the end. She will continue this until YOU put a stop to it.
I think I saw your reply of Sandi's wayward wife thread. Read it again and again until it sets in. I do not believe you can "nice" your W from the OM and back into the M.
M:34 XW:34 Together: 10y Living: 9y Married: 7y Son:6 Son:4 Separated: 12/28/13 Piecing: 5/2/14 Separated 2nd: 10/16/14 W filed, but pulled it: 11/5/14 papers served: 1/27/15 D final: 3/6/15