I went to a party at my college last Friday. I noticed a group of 3-4 blondes on the dance floor and immediately knew that they were the troffey of the party. They knew that too, so they were keeping themselves distant from everyone. I pretended not to notice them and said hi and talked shortly to several guys on my way to them, as to demonstrate I was socially integrated. By the time I reached there, they were standing with their backs to to a wall as to be shielded. It was loud and there was nothing I could do except ask one of them to dance, and that's what I did. After a while, we started talking about plans for the night and she agreed to come along. She was a volleyball player in the team of a local college, super hot. She spent the night at my place and we went for breakfast the next morning. I've got her number, but she never seems to pick up. I sent her a couple of messages, and the only response I got was one to the first message, and it was : who is this?

I know what you guys are thinking : fool's mate + buyer's remorse, and I am thinking that as well.
How about advice? What could I have done better? What should I do in future?