Am I right to snub this girl?

Ok..good god man don't you see that the two of you are acting soo childish? My question for you is why would you want to be in a relationship with a girl who obviously only used you for a rebound and then tried to be nice to you when you stood up for yourself. If the two of you are causing all this drama now and you aren't even dating then how in the world do you expect to form a lasting and meaningful relationship? Quite frankly I think that you are being immature too. Your feelings are hurt and you are hurting her back. So I think the mature thing to do would be to tell her how she hurt you then to just walk away from both her and the entire situation.