Who did the woman talk online with?

W: The day I turned thirty, I turned on the computer. I went into the over- thirty room for a joke. And he was there. And we started chatting.
M: About what?
W: Books, music, how much we both love New York. Nothing really meaningful. Yet a good way to pass time.
M: How come?
W: We don’t talk about anything personal. We made a rule about that. I don’ t know his name, what he does, or exactly where he lives. So it will be really easy to stop seeing him, because I’m not.