After reading your little story, I have the impression that this girl either:
(A): Is not interested in getting into another relationship (shortly after ending her last one).
(B): She has already found another guy where she lives now that she is interested into more than you.
Obviously she's just playing around with you and having a good time. But I don't think she's being very serious with you. If she were really serious about establishing a boyfriend-girlfriend relationship with you, she wouldn't be this witty with you.
I say you turn the tables around and have a little fun with this girl by making her play at her own game. Just stop communicating with her right now. Phone, text messages, internet, whatever mode of communication(s) you use, drop it immediately. Act like you're not interested in her anymore. I can almost guarantee that after a while, she'll come begging to you for attention. When she does, be witty and rude to her (but in a funny way).
