How did you two meet?

When I start talking with someone for the first time and they hear my accent, the first question they usually ask is "Where do you come from?" The second is "What brings you over here?", to which I usually answer "My Wife." The third question is usually "How did you two meet?" So in true American TV series style, here's a quick summary:

Previously in Graham's Life.....

Graham inexplicably develops a taste for English folk music, regularly going to folk festivals, such as The Cambridge Folk Festival, where one year he hears a new American singer-songwriter called Dar Williams. He starts listening to American Folk Music and joins the Dar List, an e-mail based discussion group for fans of Dar Williams. He starts posting on a fairly regular basis. He receives an e-mail one day from an American woman living in New Jersey commenting on something he'd posted to the list. Let's call her "B." Graham and B start e-mailing each other on a fairly regular basis, and a friendship ensues.

In these pre-IM/Chat-room days, Graham decides to start an IRC channel, so that like-minded fans can get together on Friday nights and chat. Despite it being a lively place, Graham and B often find themselves still chatting with each other through the night and into the morning. Something is going on here.

One Friday evening on IRC, with only Graham and a New Zealander still around, B mentions that she has a spare ticket for a local folk concert, and jokingly wonders if anyone wants to come with her. Graham calls her bluff and says sure....