My 21st was similarly spectacular Catey... I'd been throwing around a few ideas - whether to throw a party & get a local band - or just do a club night - or a meal for all my mates etc etc...
My then b/f announced that I should stop worrying because he'd organised something special for me... Wow! How cool is that? A b/f who sorts out a surprise treat for your 21st? How lucky am I?!!!
Not all that lucky apparently.
His idea of a treat was to get a mate of his (who couldn't stand the SIGHT of me!) to give us a lift up to our regular boozer. And not to bother telling ANY of my mates about it.
After half an hour of trying to be polite to his silly mate, I left them in the corner and stomped around the pub announcing to all and sundry that it was my 21st, I was p'd off and that they should buy me a drink. By the end of the night I was seriously Wobblybe.
& the b/f got a peck on the cheek and a car door slammed in his face when he thought he was going to be invited in