How should I respond to this??

[Streetpunkm]

What do I say to a girl after she says "um I have a boyfriend", but you later figure out it was a lie and you already know she likes you, but playing hard to get? Are there any clever responses I could use to get her out on a date with me?
Btw, she usually gives these one word replies and is shy-ish around the guys she likes..

[vashti]

I don't know that any girl would lie about being unavailable to the guy she supposedly likes, and I don't care how shy she is. It would still be impossible to imagine. Shy girls don't play hard to get - they are too shy for game-playing.

[CAM]

She sounds odd. How about trying another fish in the sea?

[Salubrious]

You could try...."If you guys ever break up I'd love to eat ice cream with you until you feel better" but, if a girl likes you I wouldn't understand why she'd say she is in a relationship...hmm.