The PUAs have a name for this: They call it one-itis. It's a disease AFCs get: They become obsessed with a girl they're neither dating nor sleeping with, and then start acting so needy and nervous around her that they end up driving her away. The cure for one-itis, PUAs like to say, is to go out and have sex with a dozen other girls--and then see if this flower is still so special.