The underlying psychopathological organisations of eating disorders are essentially illustrating borderline functioning. These organisations are characterised by major dependence on the environment. However, other paths have been developed, highlighting a partial and perverted relationship: some joint mechanisms of defence but also sexual issues, showing the significance of narcissism, the denial of castration and the splitting of the actual ego. Based on projective data, our study specifically focuses on the relationship between the singular modalities of processing object loss and the use of perverse adjustments mobilised in the deviations of eating disorders and their overinvestment; the particularity of identifications in view of bisexuality and gender differences and the characteristics of relational movements mobilised through confrontation to sexuality.