Jeff, you did say the one thing which makes me advocate standing DOWN as far as "standing" for a marriage goes. When you realize you are trapped in an unhealthy cycle. If a person reaches that point, it is best they let go in my opinion, too. No one has a crystal ball though and no one benefits if there is unforgiveness in their heart. Make sure that's not you and do try to refrain from thinking you know what is going on in your wife's head. That includes when you would base those conclusions on what comes out of her mouth. Good luck to you.
If I may hijack for a moment...
J_M ~ I don't keep a running thread right now. At least not with up to date reports. I have too much other stuff going on. I did recently post a summary of my story on my thread. It's in separated but it may have been on the one that was recently locked. See how well I keep up?! I just don't.
Further J_M, it is no secret that you and I sit on opposite sides of a well-worn track. Knowing my story isn't going to change that so I don't expect you'll be reading and having any lightbulb moments. Keep on keepin' on.