"She is either distancing herself from me to piss me off or to trying and entice me to make a move. "
This is YOUR interpretation of her actions. She could simply just be going what she's doing and you're just hyper-sensitive to everything and every move she makes.
He IS being hypersensitive and aware of her actions. It's a reactive way to be, it really is a waste of time.
In many of the WAS especially WAW cases, the WAS is irritated by the LBS attempt to communicate. My belief is because the "channels" that the LBS are trying to communicate through are now occupied by the OM or OW. When you try to communicate through that channel that their "love" is, it makes them angry or rubs them the wrong way.
