Here is some information about the book taken from the Hachette Book Group Website:
Eve is eight months pregnant and in the middle of a Thanksgiving celebration when she discovers that her husband Jonathan has developed an intimate relationship with a woman over the past year. Jonathon asserts his innocence (an affair involves physical intimacy, and he didn't have any), while Eve feels deeply betrayed by the emotional connection he shared with someone else. What Jon has done seems so terrifyingly out of character that Eve finds herself questioning her entire reality. Did she ever really know Jon at all? Was their happiness together a lie? Is emotional intimacy more forgivable than sexual intimacy? And can their marriage survive?