Whenever I am in a particularly awful mood I will turn on a Nora Ephron movie and instantly feel better. From When Harry Met Sally to Julie & Julia, you can’t go wrong with a Nora Ephron screenplay for a little pick me up. This book was no different. Rachel is seven months pregnant when she finds out her husband is in love with another woman. Though rather than being a depressing book about marriage, it instead points out all of its oddities. The humor is topnotch and the dialogue is some of the wittiest I’ve ever read. Also if you read this book on audio, it's narrated by the wonderful Meryl Streep! 
(However this book does have a lot of 80'sisms. Using outdated ways to talk about lesbians and BIPOC)