My Ex used to call and ask for the kids ( no every other week for him, he was busy)Our daughter would get excited, pack her little bag, and wait at the end of the drive for her Dad. More times than I can count, he didn't come. Our younger daughter, who is bipolar, stopped packing at all. Eventually D would come back into the house, big tears in her eyes. My H eventually adopted the girls.
D's relationship with her birth Dad now is this: She says he often cries about how worthless a father he has been. She tells him he is right, but loves him anyway. Younger D's relationship with birth D is a bit more strained. Perhaps because she is just like him?