And I argue the complete opposite. It's ironic, considering that the author's changes to canon Harry are what forced him to strong-arm the beginning of the relationship to this degree. Canon would Harry would have had much better chances of actually taking Abby's unprofessional and unasked for behavior in stride and -maybe- in good humor. As it is, with the author's characterization of Harry, it makes no sense. Harry specifically went to that cafe to have some time to himself, to think, and to not be bothered by anyone. If someone specifically came to bother him every time he was there, coupled with the fact that that someone is a member of the staff, and refused to understand that no, he doesn't want to talk, he'd simply stop going there. If he can't get the peace he's looking for anymore, there is no reason to go. I'm sure there are other places to get coffee close to his kids' school. The whole premise of 'grumpy customer and persistent-but-kind waitress' doesn't work in the premise the author himself has created. Abby is completely out of line in the first several chapters, she should have lost her job several times over and Harry should have either stopped going there altogether or notified her supervisor. Basically, Abby was ruining Harry's free time while offering nothing in return that he wanted. Warming up to her, while necessary for the story, is not at all how things would really go. After the author does force them to become friends and we accept this as the premise, things get infinitely better because now Abby isn't being invasive and unprofessional to a stranger and a customer, she's being what she is to a friend of hers, and that's fine.