This last post seems to be you trying to build a case that this isn't happening. She still has feelings for you, she doesn't know what she's doing, she's not talking D and splitting phone bills, she's been ok getting along with you and hasn't pulled away, etc. You seem to have made up your mind she's going through a phase and will miss you once she's had some time to realize you're not around for her, then she'll come back and it will all be better again.
I get denial. I get this is beyond your ability to wrap your head around. But at least reread your post and try to see what I see. Did your W feel you minimized her opinions, emotions, and needs during the R? Because what I see is her saying "Even though I love you I can't live my life without being heard", and you replying "hm, you seem upset for some reason? Separation? K. Go for a while and let me know when you've calmed down and are normal again"...
Me:38 XW:38 T:11 years M:8 years Kids: S14, D11, D7 BD/Move out day: 6/17/14, D final Dec 15