"Hun"??

I was called "hun" twice this morning.

Usually I would expect this kind of comment from a waitress in her 40's or 50's when she offers me a fill-up on my coffee.

My first "hun" this morning was from the girl at my apartment Starbucks. She had to be all of 19. We started talking about the music playing over the speakers, I thought it sounded oddly like "jingle bells". She laughed, then called me hun. ...what?

The second was at Joes. A girl walked in and wanted coffee. I told her that we were closed, and I got..."Thanks, hun".

Should I take this as a compliment? Or should I be worried?