As I have been chronicling here for the past week, it seems he's about to just stop being in his daughter's life. She has *very lightly* pushed him away due to his lack of involvement & some incidents of broken trust, & he seems to want to just accept that she doesn't want to talk to him & leave it there.
It's the first time she's testing (as children sometimes do) whether he will persist in loving & caring for her, & he won't even try to clear the hurdle.