I agree that there is no need to reply to her email. It's words in a message. It doesn't mean anything. Her actions are loud and clear.
I think your goals are a good start. The more you tweak them into measurable things, the better they will be. One concern I have is that you plan to turn your phone off whenever WW is out. I don't think that's smart in the sense of safety. And what if you want to call/text a friend while she is out? A better option would be to turn her ring tone to silent and build resistance to checking your phone while she is out. When I was struggling with this, I would force myself to not look at my phone for a certain amount of time. Maybe 10 minutes for example. And I would increase that number over time. Eventually, I broke the habit.
