Help! My friend is a Facebook addict!?

my friend is a face book obsessed girl. she believes that "pokes" are real, I just don't know what to do anymore. Any second she gets she spends it on face book commenting on peoples pics all while saying "haha look mel, what a nice picture! they actually have lives!"....I just don't know what to do, she wants to take a trip to find the inventor of face book to personally thank him. (Everyone knows that's impossible! he's too busy filming "The social network part 2!!!"....Anyways, what can I do to help my friend?!