Love and other natural disasters

The book is about an emotional affair a husband had with another woman. Is it less meaningful then a physical affair? With all the news on the tv about every one having physical affairs it really struck me as a different concept. Shumas characters where well developed but I felt the book dragged in the middle. There comes a point in the book where the main character is not moving from the beginning and the reader just wants to skip ahead and see how it ends.