One time I met this girl fron Ukraine. Her name was Kitty. I told her "That's probably not your real name, what is your real name?" And she said, "It's none of your business." I got dumbfounded by her answer and just went "Okay.." there was follow-up awkward pause after that and eventually she ended up one of those girls I never get to see again. *What could I have said/acted differently?" Please don't be like, "she is a bich, forget about her." I was wondering if I had something clever to respond to her shit-testy reaction and turn the table. Any good witty comments?