Facebook and other social networking sites make it easy, breezy to reconnect with old friends. What happens, however, when you accept an old flame, thus cementing your ties for virtual eternity? Is it rude to boot them after, in a moment of conviviality, accepting their technological friendship? Once the deed’s done, can one turn back without looking petty? Or should one simply get over it and move on knowing that an ex will forever be a part of his or her online life?