You may or may not be surprised to learn that her opinions don't hold up that well to detailed scrutiny or edge cases. She calls me Isabella, she'd call you Daniel and use last names if necessary to disambiguate, that sort of thing. She would be exasperated by a situation in which some more compelling reason existed to use a nickname and would probably prefer to absent herself. (She has almost always had the option of simply not interacting with anyone who was mildly inconvenient for any reason.)