The mindset you will be alright no matter what happens. That's why I started telling myself, "I can handle it." TEA -Thought proceeds emotion, emotion proceeds action. Have a plan for all possibilities, learn what the facts are so you don't imagine the worse (feed the snakes)and then play to win.
Another view on detaching that helped me was to use the "fishbowl" analogy. View your sitch like you are a third party looking at your marriage from the outside looking in. The change of perspective helps.
JTJ, The boundaries discussion is a great idea. We will get on it.
Cheers
M22,H45,W45 S21/18D12 Retain faith that you will prevail in the end, regardless of the difficulties and at the same time confront the most brutal facts of your current reality, whatever they might be.