Number one.....Your wife has told you she is not done. She is actually taking action by going to MC.
Number two.....I just read through that post about skyping with your children and how you felt.
Please don't take this the wrong way, but I don't care what you do for a living or what you did to get there.
People are people.....if I met you, I would view and treat you no differently than the guy that scrubs the toilets here.
There is not a job on this planet that can even begin to come close to fatherhood.
There isn't a damn thing that can even come close to being more fulfilling than that.
Something is missing here. I don't know if it's fear, ego.... hell I don't know, but you are struggling with a question that to me and most other folks is crystal clear.