KanDo
You are doing the right thing…just keep going...don't look back. Remember, she is not who you thought she was and it is not your fault.
I have been going through hell with my WW as well. After D Day #1 (2009), she wanted to work on our marriage and promised NC. After D Day #2 (2011) she wanted to work on our marriage and give me TT for months while insisting it was only a EA….she was still secretly in contact with OM. Months later…D Day #3, I got the proof I needed from the OM's wife. It was a PA and it never stopped…almost 2 years I had been financially supporting this. I have spent the last year in a false R with her doing almost nothing to help us. I thought things were getting better for a few months but she has regressed again. I feel contact has resumed…if it ever really stopped. Like your wife, she still has her laptop and cell locked down.
I have finally thrown in the towel. I filed 2 weeks ago…I am moving on. She has no idea…I want it to be a nice, big surprise.

I think she stayed because it is about the money and lifestyle I provided her with…similar to your situation. We didn't have a prenup, no fault state, married for 15 years, 3 kids, so I will get hit pretty hard. At this point I don't care anymore. I just want her out of my life.
I am wondering how my WW will react to getting the "D" papers.
Hang in there.