Inaspin - Good for you, looks like your detaching is working but just be prepared to be disappointed as she veers back and forth between the guru and you.
My W is typically very nice to me, though only in a platonic way, and as soon as I think she may be coming around a little bit, she brings up something about the divorce process. Total mind game so I just let everything roll off my back and stay cordial but distant (as I can) without appearing rude. No need to escalate tension.
Today is my birthday. She is making me a nice breakfast and gave me a kiss on the cheek this morning but no real warmth. No expectations for the day at all as don't want to be disappointed at end of day. Just trying to enjoy my girls as much as possible.
So sounds like you are doing the right thing, just continue to be consistent with it until she decides to make a big effort in your direction.
Me 47 W 44 D16, D13 T 23yrs M 20yrs WAW/MLC + Male EA "BFF from H.S." = Misery