I am so sorry for your situation and the rough road you have been down. It sounds heart-wrenching.
Can we get some more statistics please? What is your age? What is your wife's age?
I'm very interested in what Jody told you. Can you tell us a little about that?
Also, I think that it is VERY important that you start reading DB or DR. This whole thing is a journey that very much starts with ourselves. It is important that you examine the whole of your situation and try to figure out what behavior of YOURS led to the breakdown. As soon as you are able to pinpoint that, you have a great chance of saving this.
I would not be too concerned about the stone cold behavior. I think 99% of us have run into that. It's a defense mechanism, nothing more. My H, who is a walk away, stopped by yesterday. He wanted to hug me, but I couldn't do it. It was merely a defense mechanism and it didn't reflect at all my real feelings.
Do your best to keep busy right now and pick up one of those books!