I could have written your story. I too was out on business and when I got back it was over. I found that her OM was an ex boyfriend that reconnected with her thru facebook day 2 of my 2 week business trip. By the time I got back, they had figured out that it was done. She too started with I married the wrong guy, I don't think I ever loved you, she wants to have a chance at happiness while she still can, etc. Took me 2 weeks to find out. It's week 7 for me and I am fairly sure she filed this past Thurs.