FOBD - 3:30 in the morning here and I can't sleep. Thought I'd take a stab at your question. I'm may not be thinking completely clearly right now bc of the time and bc of the new status of my own sitch.
What I'd do if I were you is this...
Once you do begin having some contact with her, validate like a mad man. But validate in a way where you are communicating that you respect her, respect her ability to make decisions, and even respect her decision to leave you. Once you get to a point where you can actually bring up the issue, do it, and apologize and again stress the respect that you have for her.
I wouldn't bring it up right now though...
BITS Denver
M 43 X 38 T 13 W moves out of home 11/2010 Roller coaster from hell 2/2011-5/2012 I request divorce 5/2012 W moves home 6/2012 Good time 7/2012 - 1/2015 I leave 3/2016 process of divorce