I'll chime in with my thoughts. I've always been of the mindset to do everything you can to save your marriage because you don't want to have regrets. I support you wanting to save your marriage, only you can decide when it's time to turn the page, it's your life after-all. Remember, you get to decide which advice to take and which advice to leave behind. You aren't obligated to follow anyone's advice. Do what works.
However, my advice remains the same. The fastest way to get your W back is to let her go. Keep doing what you're doing, your W is obviously noticing your absence. I would refrain from any more 4 hour calls for the time being and stay focused on yourself.
One thing that really helped me was reading the "Advice from wise DBer's". Have you read any of those threads? There are some true gems in there.
