Seriously though. Let's clarify this, because I think this has derailed because people have run away with this as an excuse to discuss more interesting problems.
If you met this girl, you said I like this girl she's cool, and you asked this girl out on a date and she responded with "I don't date guys in purple socks.", then you are DONE my friend this is over. You don't know why she said this you don't know if that's the real reason. You aren't invested, move on.