Hi there Scaredtodeath,
I would like to say

. I am glad you have found us and hope that you will get the support you need here.
It's good that you have already read Stop Walking on Eggshells. It sounds as if that book resonated hugely with you, yet failed to change your relationship for the better. I can relate to a feeling of relief at having finally understood what you have been dealing with. And then a feeling of disappointment, perhaps, that knowing what it is does not mean that it is fixed. It's not easy and there is not one solution that works for everyone and for every situation.
It is communication tools and the consistent application of them that offers many of us hope. You can read about
SET (Support, Empathy, Truth). Are you familiar with this? Have you tried it?
I also wonder if you are in need of better setting and enforcing some
boundaries. Your wife's constant need for your attention must be draining. You need some time to pursue your own interests; whether it be watching TV or a hobby that takes you outside of the house and allows social interaction with others. I saw your response on another thread as well in which you mentioned what sounded like a pretty isolated life to me. What are some things you might like to do for yourself?
You don't mention children? Are there any? Why do you think "things are rapidly crashing" ? In what way are they getting worse?
We will help, Scaredtodeath. We all help each other here and many of us have found ourselves understood and supported here in a way that we were not able to in our real-life communities.
I wish you a peaceful and restful Christmas
Take care and talk to you more soon, ok?
~VitaminC