Yeah it sounds like she is having a PA...but there isn't anything you can do about that except GAL and stop pursuing her. Read the chapter in DR about infidelity it was helpful for me (my wife had a PA, perhaps several).
I took down the pictures of me and my W throughout the house and I took off the wedding ring. But that was more of my way to just let go and start over (you need to do what is best for you...don't worry what your W might think or anybody else). I guess that is the point of separation to reflect about what went wrong, give her space, and GAL. GALing will save you, if not your marriage.