Thanks for the response....I've seen your input on other threads, and I really appreciate it.
When I started to make changes, I guess I had really started to think about what I wanted out of life. I stopped reacting to things and starting asking myself, how do I want to react. I'm talking about everything....kids being loud, bad news at work, wife not calling, etc. I think this is when I started to break the chain so to speak.
After I read DR, I realized I was already doing a lot of the suggestions...180s and "as ifs." I tried to stay upbeat, and not get irritated so much, stopped grilling my wife on where she was and who she was with, starting doing more of my own things. The response was really positive, and really fast. I noticed significant changes from my wife within week.
At this point, she's not really saying she's leaving (though she does say it when frustrated and has a few beers). She is more often saying "I know I'm not treating you fair, or right, and I don't know why....I am confused, and I don't know what I want. I can't stop thinking about the years I've wasted, or how mad I am at you for things long past."