Dave, I will say this for CeMar, he comes up with the most amazing references of anybody, bar none, on this site. Before giving your wife the SSM, I'd really take his advice and have your wife read the Five Love Languages. I think it would be much easier for her to digest, at least at this point.
It would be a minor victory, see? Get her to read a book, ANY book that will help her start moving toward improving the relationship. Just ask her if she'll read it. Go to Amazaon.com and print off a synopsis of the book (after the two of you agree that you need to work on your relationship), and ask her if she thinks this would be a book the two of you could read together.
Just try it. Yes, she could say no. And then you will have to TRY AGAIN, just like the rest of us. That is what life is about.