First of all, you have come to the right place. There are lots of people here in a similar situation as yours that will be able to help you.
It sounds like you have done a few things right. She definitely has not lost interest completely. The PA is certainly in the way of making real progress, as long as it goes on. Does anybody but you know about it? Is the OM married? Does his W know? There are ways to bust the PA, but, of course, you have to be careful. It could also push your W further away. There are a few people here on this BB that can give you excellent advice on this.
In the meantime, continue to work on yourself. You mentioned 180s, try to GAL and maintain a PMA. Start to work out, spend more time with the kids, everything that keeps your mind occupied.
Keep posting with updates, so people find your thread. Sooner or later you will get some great advice. Read the DR or DB book, if you have not done that already.
AN
M43 W45, M17 S9 D6 Bomb: 11/11/08 EA: 10/26-12/31/08 ? Retrouvaille: 2/13-2/15/09 Healed, but still heading for D My situation