Why does my friend make comments about my body when we’re the same body-type?

She calls me “short” and makes fun of my height when we are literally the same height. She calls me “flat-chested” when she also has small boobs. Then when I say she’s the same things she gets all defensive and says “no I’m not!” Is she projecting or something?
Why does my friend make comments about my body when we’re the same body-type?
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