Earlier today in school, I was talking to a friend of mine. She told me if she doesn't get a prom date, she'll ask me. I just kept focusing on what I was doing and responded with a half-hearted "K." She then mentioned after a few seconds she's going to ask another guy, and I did not respond to this at all. What would have been a better response, or did I handle this correctly? I did not want to be a second choice for her, so I will probably reject her if she brings it up again.