The opposite of love isn't anger. It's indifference.
How to get there? For me, and it took some time, but I finally realized (after building up my self-esteem) I DESERVED better than what she was capable of being right now. And I began to see things in her I hadn't before that I did not like. And after a while, I asked myself why I would want her?
If you can work those issues, I think it will do nothing but help you.
I'm no psychiatrist, but it seems you are having a time letting go. Why? For me, it was fear. Fear I would be alone the rest of my life. Fear I couldn't do "as good" as my W.
1. Work on your self confidence. 2. Read up on "cognitive dissonance" and "cognitive distortion" - go to wikipedia.org 3. Read "Learned Optimism" by Martin Seligman.
Work through that, and I think you will find that your attachment to your W will vanish. But, I think that all is traceable to, and starts with, you working on your self-confidence.