Love and Other Impossible Pursuits is a novel by Ayelet Waldman and released in 2006.
Emilia Greenleaf is an attorney living in New York city with her husband, Jack Woolf. Emilia is stepmother to Jack's remarkably intelligent four-year-old son, William. William lives primarily with his mother, the medical doctor Carolyn Soule. It is Emilia's job, however, to pick up William from his nursery school every Wednesday afternoon. When she picks him up, Emilia is often subjected to snide glances and whispers from the other mothers because, it transpires, her relationship with her husband began when he was still with his wife. They had an office affair, and eventually the marriage dissolved. The reader also learns early on that Emilia and Jack recently lost their own child together, a girl they named Isabel. They had the baby home for only one day, as she died overnight of SIDS in Emilia's arms after being fed.
The bulk of the story deals with the results of Isabel's death, including the strain this puts on Emilia and Jack's marriage, as well as Emilia's feelings towards William. Emilia does not particularly like William (in fact, she describes him as "insufferable" early on in the story),