Aubrey, that's who.

She's going anyway, of course. It's not her friends' fault her college boyfriend left Aubrey on the day of their wedding. Lies, selfishness, unhappy surprises...no, thank you. And you know who's responsible for her permanently single status?

Monica, that's who.

Their friends all say Monica Wallace had a thing for Aubrey back then--not that Aubrey cares one little bit why that still makes her heart race. Monica convinced her best friend Cody that marrying Aubrey, settling down, and locking himself into a 9-to-5 at the expense of his dreams would be a huge mistake. Cody called off the wedding, and Aubrey has never forgiven them.

Aubrey McFadden is never getting married, but she does have five weddings to attend, and she'll be avoiding Monica at every single one.