Sorry you had to hear about the dancing. I'm sure that would trigger some emotions in me as well. Yet you are exactly right.
Quote: The thinking part of me actually says it doesn't really matter. She needs to come after me anyway...not visa-versa.
You interpreted her opening your phone bill well, IMO.
Quote: I did notice that of all my mail that my wife brought in the house the only piece she opened was MY cell phone bill.
She's trying to get you to chase or reassure with interest. You're doing a nice job of detaching and letting her curiousity get the better of her. Stay positive, Hope!