Maybe that helps me understand what she's going through.
Hmmm. I get that..but then that's kind of part of the addiction isn't it? (I mean isn't that kind of like saying, well, I understand if she drinks too much, I mean, I need a few sometimes too. Then you both just drink too much and nobody gets better.) So, how are you going to have a healthy relationship with someone you're addicted to?
Maybe instead of being so focused on her, and her actions, and her thoughts, and her moods, and her motivations, and..her..you started looking at the issues that bring you into an addictive relationship, even if it IS your wife.
I'm not saying that to be judgmental...but because I am working on that myself. And I'm not saying you shouldn't have a relationship with her, I'm saying you probably have to tackle some stuff inside you for it to be a healthy one.