Professor Tomassi has given excellent advice here!
When a single MAN is leading a healthy life, he tends towards putting himself, his family, his career and his friends first. That might sound odd or even selfish. Yet just about every woman I've met seems to find that as a turn on and the reasons are obvious - confidence, experience, maturity, arrogance, leadership, etc.
When you see a single man willing to risk one of those important areas of his life for a woman then something's not right.
No DJ (MAN) is gonna sit around and wait for some HB who hasn't even displayed any signals of interest. That is the ONE-itis kicking in and when unchecked will just lead to obsession. Probably not a path a college professor should be taking eh?
Alright 'paranoir', so you're a professor. You should have a decent respect and understanding of research, experimentation, cause and effect, etc.
Why not try an experiment. Make some moves on the other plates. See how you feel about the student when one of your plates responds positively. Perhaps your interest in the student is much more a function of your prospects than her percieved quality???