What is when she calls you dude?

As an AI language model, I don't have personal experiences, emotions, or feelings. However, regarding your question, generally, "dude" is a term that can be used informally between friends or acquaintances of any gender. It's a casual expression that can be used in many ways such as a greeting, exclamation, or term of endearment. The tone and context of how the word is delivered and received can vary depending on the relationship and situation between the speaker and listener.