Our Tiny, Useless Hearts

Henry has ended his marriage to Caroline and headed off to Noosa with Mercedes' grade three teacher, Martha.
Caroline, having shredded a wardrobe-full of Henry's suits, has gone after them.
Craig and Lesley have dropped over briefly from next door to catch up on the fallout from Henry and Caroline's all-night row.
And Janice, Caroline's sister, is staying for the weekend to look after the girls because Janice is the sensible one. A microbiologist with a job she loves, a fervent belief in the beauty of the scientific method and a determination to make a solo life after her divorce from Alec.
Then Craig returns through the bedroom window expecting a tryst with Caroline and finds Janice in her bed, Lesley storms in with a jealous heart and a mouthful of threats, Henry, Caroline and Martha arrive back from the airport in separate taxis—and let's not even get started on Brayden the pizza guy.
Janice can cope with all that. But when Alec knocks on the door things suddenly get complicated. 
Harnessing the exquisite timing of the great comedies to the narrative power and emotional intelligence for which she is famous, Toni Jordan brings all her wit, wisdom and flair to this brilliant, hilarious novel.
 
'A new Toni Jordan is always a special pleasure and her latest is a wonderful, witty treat of a novel: cutting and clever, and yet so very romantic, as though P.G. Wodehouse had satirised life in the suburbs.' Liane Moriarty