L - I believe you are right. I think she feels completely comfortable letting me in on these types of things now and being even more nice because the Divorce is close and the cage door is open. I also know if I brought up anything related to us she would squash it in a heartbeat. I have not made this process difficult for her at all.
M - I just use my Fit Bit, scan my labels and use measuring cups to portion out my servings. If I go out for lunch I just search for the menu item search and most restaurants pull up. I didn't do any cardio this morning so I had to make an adjustment to my lunch today so I could stay around 2400 calories. So far I have a calorie deficit of about 2800 for the week.
Your also right it would take a lot for me to drop my guard and get sucked back in. Once the D is final I think she might have a different idea of what our R will look like than I do. I don't know if this a really sunk in for her yet and has thought about me moving on and dating. It could be me but I just get the impression.