B - As the LBS I think it is very easy for us to assume all the responsibility in the MR for what went wrong. I will say though that unless there was some sort of abuse, etc. that is simply just not the case. Own what you did wrong but please don't own any of what your W contributed. Your W may indicate that she tried but IMO unless you went to MC and she made it clear to you there were problems she didn't try because you had no idea there was anything wrong and you both did not try together.
I never in a million years thought my EW would have left me. 2 years ago I was her rock, she couldn't imagine her life without me and the kids, I was a great husband, provider, lover, etc. and now we are D'd. I will never understand but I do accept it.
Also realize that you could have been the perfect husband and this very well still could have happened to you. Beating yourself up and constantly analyzing what went wrong is an exhausting task. Like M suggested look at your MR holistically and without the love goggles on and I am sure you will realize things that you didn't like about your MR either. After my emotions subsided and I was able to get clarity it became apparent to me that there were many things that I didn't like but I tolerated.
My W, your W, M's W, S's W and all the other W's are not perfect spouses. We were not either
