Dude, I say don't sweat it. Look at the goods of it first of all: now, if you want to get something started with her, she will atleast know that you are 'interested' in her.
Yeah, your friend was stupid, but hey, what'cha gonna do, eh ?
You can't go by what she went on, because you have to remember she was put on the 'spot.' For all you know, she could have strong feelings for you, but was just embarrassed to admit it to this geek.
I say, don't sweat it, and if you really like her, then start to get serious.
"I still find each day too short for all the thoughts I want to think, all the walks I want to take, all the books I want to read, and all the friends I want to see."
- John Burroughs