Fianced by Facebook

It's an epidemic...fianced by facebook. It's those distance friends, the ones you only disclose your all night benders to through a photo montage. Your "friend" who you initialed befriended in 2005 because you needed people to populate your friend tally. And there on the news feed - engaged.
Do you congratulate them or duck behind your desk hoping they don't see you. Because if they see you they may re-engage in communication. Is it just me, or do people reach out after they get engaged...maybe they are trying to up their wedding friend tally. I prefer to be hired as a wedding seat filler, not fake friended. Umph!