I was very emotionally available. My LBH was the one who couldn't communicate his feelings. So, I guess I can't really be much help.
I really don't think that being emotionally or non-emotionally available is the "decision factor" of walking away for a spouse. I think having a LBS who can't give emotionally of themselves can have just as much impact on the R.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!
