Abstract
John Bayley was married to Iris Murdoch for 45 years. In the last few years of her life, Murdoch developed Alzheimer’s, and John Bayley wrote a memoir about their life together, including the difficulties of looking after her with the disease. Although the Memoir was generally well-received, some critics called the publication an act of betrayal, because of the intimacy of some of the revelations, because of the public reduction of a great mind to a sick old woman, and especially because of Murdoch’s inability to consent or respond to it. I agree, but I think it was even worse than that. I want to distinguish the ‘shallow’ betrayal of a ‘three-dimensional’ person in the narrow timeframe of the present from a ‘deep’ betrayal – and I will argue that Bayley is guilty of both. Deep betrayal essentially involves a close intimate of the victim betraying the ‘four-dimensional’ person across her whole life, as well as betraying the relationship between them. Such a betrayal inevitably casts a shadow back on our understanding of the earlier relationship between Bayley and Murdoch.