Very, very slow. Sounds like rebound behavior to me.
I don't think the "Good morning" text was a backslide, but I wouldn't do any more than that.
If/when she indicates she wants to talk about your situation, you'll need to be as calm, rational and unemotional as possible. I'm guessing you already have some boundaries you will want to put into place if the two of you start to consider reconciling.
Stay cool and be on your guard. This could all change without any warning.
H 56 W 48 D27,S21 SS25 SS22 Severely autistic M(#2 for both) 9 1/2 yrs. "I've never loved you" 3/7/2011 Separated 8/7/2011 BITS