It was my first conversation with a HB8 who accepted my friend request in fb yesterday, she had a special name and I could tell by her name where she is from, so I started the conversation by a cold read, I built rapport immediately and had a great conversation about our her home city and our trips and the people there, then we talked about ourselves etc (she was a smart girl and was studying in the top university of my country).
Finally I had to go and asked for her number, She said I'm sorry I can't give you my number, then her frame changed and talked to me like I'm a stranger, I told her I know there are many guys who hit on you daily and you think I'm one of them and I understand, then I said goodbye and left.
It is pretty common situation and I'm sure it has happened to most of us. what I did wrong? whats the best thing to say when a girl refuses to give her number this way? should I try to get her number again later?