The WW is not defined by whether or not she has an affair. It begins in the heart of a W who has strong resentment and disrespect toward her H. Her mindset is wayward, and she is selfishly motivated. First signs of her resentment and disrespect usually show in the way she talks to her H, attitude, and general treatment of him. Having an affair is an act of her rebellion.
Is it possible to be wayward and not be in an affair? Absolutely! Read what I said above. Some authors refer to it as the hard hearted woman. Look up the definition of wayward.
I am very hesitant to give you advice at this time, b/c you have been so confused and bounced from MLC to WAW to WW back to WAW.
For now, I think you need to stop trying to label her, b/c it messes too much with your head. You need to get your own head straight, and work through your childhood issues. Currently, she is not attracted to you......and it has nothing to do with your size (BTW, good job at losing 40 lbs). I think you will have to find that healthy emotional balance you spoke about in one of your posts, before having a successful relationship like you desire.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!