The Wedding — Nicholas Sparks

After thirty years, Wilson Lewis is forced to face a painful truth. His wife, Jane, has fallen out of love with him, and it is entirely his fault.

Despite the shining example of his in-laws, Noah and Allie Calhoun (originally recounted in The Notebook), and their fifty-year love affair, Wilson is unable to express his true feelings. He has spent too little time at home and too much at the office. Now his daughter is about to marry, and his wife is thinking about leaving him. But if Wilson is sure of anything, it's this: His love for Jane has grown over the years, and he will do anything he can to save their marriage. With the memories of Noah and Allie's inspiring life together as his guide, he vows to find a way to make his wife fall in love with him... all over again.