Hi rekralc,
To break out of your romantic mold I strongly suggest you have your hair straightened the day before the wedding so on the wedding day the wedding stylist can give you a younger fun look. Start simple by having a half up look but be sure to have some fringe around your face. Curly hair people are very used to seeing "movement" because curls have texture. You are not the bride so have fun with your look..it is one day, go for it girl...you're 20 and I'm sure you will have many more weddings in your future.
Have fun with it.