My friend accidentally called me babe?

My guy friend accidentally called me babe. One of my male friends moved states away around 6 months ago. Recently we began talking on the phone while playing video games. We do this a few times a week. Normally he calls me by my name, or dude, or bro. Today he accidentally called me babe... He didn't take it back and I'm just wondering how you accidentally call someone babe...
My friend accidentally called me babe?
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