The first novel for Harper fiction from the Guardian top 100 fast-seller, and "Sunday Times" top five bestseller; is an intelligent, fun and feel-good novel about best friends, about settling down and about throwing it all away. Do you fall in love with your heart or your head? Two best friends have two different attitudes to love: one is sensible, practical, and contented with her kind husband; the other makes impetuous romantic choices that lead to broken hearts and high drama. But what happens when the married friend encounters real passion for the first time? When she starts to wonder if she's made the right choice? A novel about best friends, about settling down and about throwing it all away...