Emelia is in love with Jack, but there is the small matter of Jack's son William by his first marriage. That Emelia was instrumental in breaking up their happy home is only secondary to her current preoccupation, which is the baby daughter she had a few months ago who died just after birth. Emelia has a lot of problems - she doesn't much like William, and it shows. Furthermore, William's mother is a prime neurotic who insists that he has a lactose intolerance and who doesn't trust her usurper to take care of her son when it is Jack's turn to have him.
Ayelet Waldman can certainly write. Her heroine is sharp, witty and sarcastic, though without the gift of much self-knowledge. She is fallible, human and a very impressive creation. These well-off New Yorkers are entertainingly portrayed and the plot zooms along with no implausibilities and even minor characters are given good credibility. There is certainly tragedy here, but it is not self-indulgent and the astringent sensibilities of the writer avoid anything too cloying in this novel, which journeys convincingly towards self-understanding and - dreaded word, but horribly relevant here - closure. I found it a real pleasure to read.