How the two meet is by no means limited to just adding each other as friends on Myspace/Facebook/etc.
Girl: OMG, it's (insert name here). Hi :D
Guy B: Man, look at him. He's only met this girl one day last month ago when she asked for homework help, and now they act like there's an unbreakable bond between them, like every other girl this guy met. He's got a serious case of Myspace Syndrome.