Spent a bit of time catching up on what's going on in your world. All in all, I don't think you have it as bad as you might think. She hasn't filed for D, as far as you know, there is no PA, and YOU backed her into a corner and made her say there is now a R. Doubtful from what you have said thusfar.
You're onto the fact that you MUST stop OM talk with her. You have no control there, so why bother. If you read my sitch (brace yourself - "Husband's" been in there, so he's seen some of it) you will see that I'm probably setting the "he just doesn't get it" record. A lot of good people are giving me awesome advice, and I'm actually using some of it! I see something going on with your wife that's going to burn out quicker than you think. He's her emotional tampon, and those can only hold so much before they're tossed out into the garbage.
You probably should stop any and all talk regarding your relationship with your wife now as well. Mate, she's left the building. Let her do her thing, stand up and be a man that she will find attractive and safe to come back to, and she very well might. You hitting her with R and OM stuff is the farthest thing from attractive to her. I know, I've done it well.
Me: 39 WAW: 40 S10, D7, S6 Bomb #1 - 12-24-06: Move out (ILYBNILWY - admitted '05 PA) Move back: 3-2-07 (W: I still want to be married to you) Bomb # 2 - 4-11-07: (W: Can't do this - never loved you) Move out again: 4-29-07 Dark: 6-8-07