Who on earth asks someone if they want a hug?
*edit: Oh, you're 16. Forget I said anything. When it comes to women, remember that they're just as nervous (if not more) than you are. She's probably lamenting all the things she did "wrong" during the date right now, just the same as you.
You got the date. Give it time and call (text, whatever) her again. See how it goes. Don't read too much into anything, it will only make you mind-fuck yourself when it probably meant nothing at all to the other person.

Or check out my new webcomic: http://selfcentent.com/







