It seems to be an amazingly confusing situation to me. Have you tried MC, or seeing someone for yourself? At least it is good for your child that you both are civil.
Me: 48 Ex-W: 45 M: Nov '96, together since Oct 93 Bomb: on 10-yr anni - Nov '06 OM Separated: mid-Feb '07 Divorced mid-July '08 One daughter - 28 XW living w/OM