"Hi Cid and sorry to high jack your post Huddy, but in my case I'm encline to file because H has hurt me deeply and has clearly moved on with his life and OW, so why should I stay married to someone who doesn't want me? I haven't read your story but maybe your W felt you were done with her, didn't love her so to protect herself if she is no longer associated with you, she might feel that she can have a fresh start. For the custody my H's ex limited his access as a revenge as he left her when their kid was very young. I felt it was pure evil from her part as she wanted her child to see what her father was really like. Now as I'm in the same situation as her, I can understand where she came from, although I always made a point that if we have kids together, we will share custody together. That's what we are doing now. Hope that helps."
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.