Having read the books, threads and received lots of advice I think I'm taking the right path....
Look deep inside. Is this the path you want to take.
It's important to get to what you really want, even if it's inaccessible. If you really want the 180, go for it. If you want something different, you need to know it; otherwise, you're too likely to sabotage yourself.
Stevesn's way of telling your W what you're doing is IMO sound - brief, clear, honest.
I, too, think you may be doing some rug-sweeping, and I think it's hurting you. The way use 'fog' concerns me. I use it myself, as shorthand for 'not being in touch with reality.' Some people see the term as an excuse, and I have to ask: do you see the fog as an excuse? As something that mitigates, for example, her breaking NC by checking instagram?
By 'fog,' do you mean:
she still hasn't cleaned up her act
-or-
the poor girl - *sniff* - hasn't gotten through her fog yet...?
Remember, the fog is self-imposed. It's not an excuse.
*****
Still, I think it's common for WSes to stay effed up for many months after d-day. In addition to the testimony from WSes above, my W said it took 5 months for her to begin to feel remorse. It took her at least that long to realize what she did was conduct an A, just a normal, sordid A. Up until then, she thought she was saving a life - KISA crap.
She was doing all the right things, but her thinking was still effed up.
*****
I'm a little confused. How will you know you're first in her heart, guts, and brain? No matter what, her words can't carry much weight at this point. I recommend trusting behavior more than words.
Again, my W said she wasn't remorseful for at least 5 months. She went NC and maintained it, answered all my questions, was transparent, did IC; she did all the things a remorseful, contrite person would do.
So ... was she not remorseful, or was she remorseful without recognizing she was?
Does your W think equally lovingly of you and OM, or does she place one of you first without realizing it? And if she places one of you first, is it you or him?
*****
I am concerned that you may be planning the 180 as a tool to manipulate your W. It's not designed work that way, and if it does - if your W returns because she fears losing you - the results are less than optimal. The best WS candidate for R wants to change from betrayer to good partner for her own reasons, not in order to win you back.
I, too, think getting more detached would be good for you - but that will work best if your goal is to detach so you can be yourself. If you've got an ulterior motive, you may be choosing the wrong path for you.