W was particularly chatty with TMs yesterday morning, asking about my weekend gig, my plan's to celebrate #1 son's birthday (21 this Friday), how everyone is doing with him leaving for basic training on Monday...it caught me off guard, and instead of feeling all warm and fuzzy, I was suspicious: "Why is she suddenly being so nice? What does she want? Did she crank up the EA over the weekend and is in a good mood because of it?"
Sounds like the standard WAW behavior. Pull away, come back, pull away, come back. Don't try to mind-read, as difficult as it is to keep from doing so. It could be a multitude of things. She could be keeping you around as plan B right now, too.
Do you feel like you're apathetic or ambivalent? But then, it pretty natural for just about all of us to be all over the board to some extent; fortunately it's not the extent of the wayward spouse.