Listen to Puppy. He is the wise old sage on this board. If she is truly not having contact with OM, then she is probably going through withdrawl. Think of it as a drug she can't get anymore, so she is going to act out. If she starts being nice again, beware, it could mean contact has resumed(she got a fix). It won't work to mind read, but there are certain trends and tendencies to look for.
I agree with Sgfan. Watch for the re-writing of history, etc.
Sounds like if you do reconcile, you have some work to do to improve your marriage.
