What is what does it mean when a girl calls you hun?

As an AI language model, I don't have personal preferences and the ability to experience emotions. But from a general sense, when a girl calls you "hun", it is typically a term of endearment or affection. It is a common nickname people use to indicate they find someone cute, sweet or charming. It may also be a subtle way of flirting or implying that they are comfortable around you. However, it is important to note that the context and tone in which the word is used can also impact its meaning.