ABSTRACT This paper explores the deliberate use of temporal ambiguities and discrepancies in Defoe’s The Fortunate Mistress to convey the disturbed retrospections of a guilt/shame-ridden narrator and the relationship between moral injury and temporal narrative techniques, highlighting the gendered nature of the fictional narrator’s moral injury. Drawing on Pederson’s model of moral injury in literature, which deals with perpetrator trauma, it argues that the narrator’s moral injury and its temporal reflexes in the narrative serve to reinforce the thematic and narratorial (re)iterations of female trauma and subsequent moral injury. Ultimately, this analysis provides compelling evidence of Defoe’s astute understanding of the psychology of shame, guilt, and narration, as well as his preference for psychological realism over traditional sequential narration, as he crafts stories that explore the human and psychological consequences of traumatic experiences.