Boyfriend called me his "ladyfriend" to his friends?

He was talking to his friends on the phone and wanted me to say hi (it's a new relationship and I haven't met them yet) and he said that he was with his ladyfriend *my name* and that he wanted me to say hi. Which don't get me wrong, I think it's cool that he wanted me to say hey, but when he and I are talking, he refers to me as his girlfriend (which we are; we're exclusive). I asked him why he called me his ladyfriend and he says it means that same thing but he never uses it when he talks to me. I always heard ladyfriend wasn't a good thing to be called; like it casual and not an actual girlfriend. He's 25 and I'm 22 by the way.
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+1 y
I should add that we haven't had sex yet or anything and he isn't pushing me to do its not just some sex thinng
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+1 y
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Boyfriend called me his "ladyfriend" to his friends?
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