I hate that too, how seeing the WAS brings up all sorts of questions and wondering. OM probably doesn't know, and I doubt she'll tell him. I bet he's insecure in their relationship, worried that she's going to return to you. How old is that e-mail you found?
New thread: http://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2112303