Emily Giffin, Jennifer Wiltsie, Macmillan Audio

Something Borrowed

Audible Audiobook (Macmillan Audio July 29, 2009)
Rachel has always been a good girl--until her 30th birthday, when her best friend Darcy throws her a party. That night, after too many drinks, Rachel ends up in bed with Darcy's fiancé Dex. Rachel is horrified to discover that she has genuine feelings for Dex. She prays for fate to intervene, but when she makes a choice she discovers that the lines between right and wrong are blurry, endings aren't always neat, and you have to risk all to win true happiness.