I have a similar experience with my ex and she ended up going even further off the deep end. Last Feb, my XW made a 180 and decided to give it a shot. I took her on a big trip and she told me she once again wanted to have children with me. Everything was great until a month later there was a relaps and then she moved back out.
Formerly SGfan M:38 W:33 M:8 yrs T:10 yrs Bomb: Dec '08 Separated: 4/18/09 Divorce: 8/28/09 XW Affair began: April 08