Girl calls me buddy?

I work with this girl and we spend a lot of time talking. We're pretty good friends, but the one thing she does which is really irritating is she calls me buddy all the time. Like what's up buddy? I'm not an idiot, I know this is a not so subtle way of telling a guy you are not interested in him. I find it really annoying. I am not flirtatious with her at all and she is not particulary attractive. I find it really pretentious and condescending. What can I do do show her how annoying this is?