LP, I read through the whole thing. It sounds like you have some things to think about. However, it sounds to me like your W has a WHOLE LOT of things to think about. Hopefully your W will be able and willing to make some changes. If she doesn't make some changes, she will never find happiness. Hopefully she heard some of that - I don't think it's what she wanted to hear.
One thing I read into it is you gave yourself a homework assignment in addition to the MC assignment. (Getting the Gottman book).
Get your GAL'ing machine cranked up again. You are doing a fantastic job with it.