Kinsella Sophie (Wickham Madeleine). Sleeping Arrangements

Sophie Kinsella is a pen name of Madeleine Wickham.
Chloe needs a holiday. Her partner, Philip, has troubles at work, and the whole family wants a break. Hugh is not a happy man. His immaculate wife, Amanda, seems more interested in her new kitchen than in him — and he works so hard to pay for it, he barely has time for his children. Maybe he'll have a chance to bond with them on holiday!
When the two families arrive at a villa in Spain for their respective vacations, they all get a shock — it has been double-booked. An uneasy week of sharing begins, and tensions mount in the soaring heat. But the temperature isn't solely to blame: What no one else realizes is that Chloe and Hugh have a history — and that the "accidental" overlap might not have been so accidental after all!