Something Borrowed

I read this book really quickly.  It started out pretty well but got ho hum towards the end.  I downloaded it because I saw the advertisement for the movie and it looked interesting.  I should have saved my money!  It was just a typical chick lit book and I usually try to steer clear of them because the ending is always so sweet.  And this one was no exception.  I saw it coming halfway through. 


Rachel and Darcy have been best friends since grammar school.  Now, Darcy is planning her wedding to Dex and Rachel is her maid of honor.  A few months before the wedding, after her birthday party, Rachel sleeps with Dex and they fall in love.  What to do?  Continue?  Break up?  Tell Darcy?  Like I said, ho hum.