But at the same time, even though she starts to like him, she can't really stop calling him „uncle". There are two reasons for that, it may sound a little stupid, but she just is already used to it and it just became an unconscious habit, and such habits can be really hard to change. For that, she would need someone that tells her that she should stop doing that, and constantly at that. But nobody is doing that. At the same time, even though she might realize her own mistake, she can't really admit it because she is still a little immature. Its just like when you were the one who has eaten all the cookies when no one was looking and even though everyone knows who the culprit is you still can't admit it. I know, its not the best comparison, but that is just how it is. In fact, THAT phenomenon isn't something that is restricted by age or maturity, it's something that happens to everyone.