It is distance and pursuit, this pulling back and her coming after you.
As to the texts - who knows where a MLCers head is at a particular point? While we can understand the overall process, the individual behaviours have their own dynamic and mystery!
My xh sent me 4 email messages yesterday. Tad, I haven't seen the guy [except in Court, which isn't very social] for well over a year, or spoken to him. You just learn to accept what they do, if it isn't hurtful, in which case use your boundaries. Detachment is crucial.