Most Helpful Guy
You didn't do anything wrong, you asked quite casually for her number. She probably doesn't feel the same way back, or does. If she doesn't you message you back then just leave it, never chase.
Liking someone is like a gamble, it may or may not work. Don't be intrigued by one bad experience and think you'll get hurt in the future. Wish you good luck1THIS IS NOT RELEVANT ANYMORE