I hope I'm not stepping on anyone's toes by starting this...
I flame loca4pook for posting almost the exact same thing in multiple threads yesterday about how she's an "older bride" and how terrible it is to be single/invited without a guest to a wedding.
Really, it's not a BFD. If you don't want to go single (and weren't invited with a date), just RSVP no.
And just because I think that does not make me an "18 year old bride who never had the pleasure of going to a wedding alone".
Flame away.