Relationship trauma occupies a distinctive and generative position within the depth-psychology corpus, designating the wounding that occurs specifically within the field of human attachment rather than through discrete catastrophic events alone. Tian Dayton, whose monograph gives the term its most systematic treatment, grounds it in evolutionary neuroscience: because attachment bonds are encoded in the organism’s survival circuitry, their rupture constitutes genuine traumatic injury, ramifying through the hippocampus, amygdala, and prefrontal cortex to produce hypervigilance, dissociation, and chronically distorted relational patterning. Judith Herman extends the analysis by tracing how trauma impels simultaneous withdrawal from and desperate clinging to intimacy, producing the unstable oscillating relationships that characterize survivors. Christine Courtois maps the vicious spiral in which current relational distress re-activates prior trauma, which in turn compounds coping failures, further destabilizing the partnership. Francine Shapiro situates relationship trauma in unprocessed memory networks that are triggered by the increasing intimacy of committed bonds. Ingrid Clayton foregrounds the specific mechanism of fawning—people-pleasing as a trauma response that erodes selfhood in relational contexts. Across these voices, the corpus converges on two tensions: whether relationship trauma is best addressed as an intrapsychic or intersubjective phenomenon, and whether somatic, narrative, or systemic interventions take therapeutic priority.