Can adultery be inherited? Kate Legge investigates after the 'king hit' of her husband's affair – which seems to run in his family
- Written by Lisa Featherstone, Professor in Gender History and the History of Sexuality, The University of Queensland
What happens to individuals, families and communities when someone has an affair?
When journalist and writer Kate Legge first let her ex-husband read her work on infidelity – his infidelity (particularly with “a close girlfriend” of Legge’s, but also more wide-ranging) – he thought she was too judgemental. But the book she eventually published, Infidelity and Other Affairs, is a wonderfully thoughtful, mature and somewhat eclectic exploration of the breakdown of a marriage and Legge’s endurance through and beyond it.
Review: Infidelity and Other Affairs – Kate Legge (Thames & Hudson)
When Legge uncovers her husband’s affair, that “cataclysmic king hit”, she soldiers on, researching to understand this catastrophe and seeking solace in the stories of others. She suggests there are many reasons given for infidelity:
drought in the marital bedroom, domestic discord, impulsiveness, insecure attachment, loneliness, neuroticism, narcissism, discontent, substance abuse, a desire for risk-taking, a quest for self-discovery, an escape from the monotony of monogamy.
Yet nothing on this extensive, yet slightly clinical list was a truly satisfying answer to why someone might have an affair: taking a step that in many monogamous relationships will stretch or break the bonds of trust, time and intimacy.
Adultery: nature or nuture?
The first half of the book is a broad-ranging meditation on adultery. Legge speaks from lived experience – she shares her own story with calm generosity – but writes too with a journalistic inquiry. She probes the issues of love, lust, desire, domesticity and infidelity, prodding the many layers of married life to produce a rich and nuanced vision.
While her heart struggles to comprehend betrayal, her intellectual curiosity is stirred: she realises there are generations of philanderers in her husband’s family, both men and women.
Research, too, suggested there were familial links, possibly because affairs were normalised in some ways, or even because there is a biological core. Perhaps as a distraction from the tragedies surrounding her, she asks the question: is infidelity driven by nature or nurture?
And so begins her exploration of the layers of infidelity, passion and deceit in her husband’s family. They travel – together – to Broken Hill, to uncover the absorbing life of his grandmother Jean.



















