The Wife by Meg Wolitzer

I have not seen the movie but about half way through the book, I began to suspect the ending.  Joe and Joan Castleman are on the way to Helsinki where he is to receive an award for his body of writing.  During the flight, Joan processes their relationship - the early passion, the exciting creative years, then the strain of parenthood which isolates them from each other.  Joan is done and knows that divorce is her best answer to this unhappy marriage  but there is more to this story.  There are some great book club discussion generating passages like this, "Everyone knows how women soldier on, how women dream up blueprints, recipes, ideas for a better world, and then sometimes lose them on the way to the crib in the middle of the night, on the way to Stop and Shop, or the bath. They lose them on the way to greasing the path on which their husband and children will ride serenely through life." Now I need to see he movie.