That's similar to my sitch, Sox. I was an almost WAW who had decided to stay when I found out H was having an affair with my best friend. Instead of confronting him and the issue, I ran. I started talking reconciliation over a year and a half ago, but we're only just getting anywhere with it now - and I can't say that I know exactly where 'anywhere' actually is. I was in an EA at the time, so H was not the only idiot in the room, either.
The trouble with having an open mind is that people put things in it.
My sitch - Divorce Busted! http://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=1804137#Post1804137