What? Do I have "flirt with me" tatooed on my forehead?

In the past three days:
a) I have been approached by a woman who thinks I know everything about Quantum Mechanics.
b) On the bus, a woman asked me what my major was after I told her I was a grad student. I said "LPS" then she told me she was an English major. I made a couple jokes about literary theory and then I said the following:
"There's big money in professional philosophy, I think I could go in the first round".
She started cracking up.

This is what I should have added to that sentence: "But my mother and my coach want me to stay in school and get an education". Sorry, that was a blatant Sorkin rip off.

But what is causing attractive women to gratuitously flirt with me? Is it open season on Stopple?