Deep Heat by Chris Manby

Ali Harris emerges from hospital minus two useless organs: her appendix and her fiance. Winning a dream holiday for two in Antigua should cheer her up - but the holiday is the first prize in Complete Woman magazine's 'Most Romantic Couple of the Year' competition. And there's no way Ali can claim to be one half of Britain's Most Romantic Couple on her own. With a holiday in the offing, Ali's fiance is keen to kiss and make up - but he's not prepared to give up his new girlfriend. So Ali takes matters into her own hands and discovers that revenge is sweet.