I think she realizes how far afield she's strayed, that she senses the damage between us might now be too great to repair. And she doesn't have the patience, the will or the courage to try to repair things, to take that risk. She has too many insecurities and she wants to simply cut her losses rather than risk any of her fragile self-esteem in what I believe to be a worthy effort.
Wow, nocode, change 'she' to 'he', and voila! My H....
It looks easier to run, than to stand and fix.
HUGS!!!
I don't feel like I will ever get complete detachment from H, at least it feels like that now.