Sorry I thought your user name was kinda Pissed off. And I get she's having trouble. And now i really get why you think she cheated on you in the beginning ....you've been trained to read people and put together evidence.
My wife moved out and is living hundreds of miles away. She did so for several reasons the biggest being mental health. Because of her mental status I have yet to discuss this topic. From the limited communications we've had she adamantly against divorce. I really can't see a different outcome.