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Had the woman kept making jokes about how she was wearing a blue shirt, I would have also thrown in "she was just standing there, all dressed up in her blue shirt". I think he was just intending to poke fun at how redundant she was.
IMO; I believe the OP was trying to be the "nice guy" and not diss this woman. However, OP - next time if you encounter this type of scenario, end the date gracefully, and RUN!!!