The paper highlights the difficulty of subjectivation as occurs in border cases when the patient is unable to contain conflicts, but acts on his external tensions. The relationship with the therapist re-proposes the original trauma through the particular fantasies that exist in the relationship. We can see a libidinal investment entirely focused on the ego and the repetition of the same suffering with thought disorders and the organization of archaic defenses. Only the attentive presence of the therapist can fill the patient’s emotional void, provide an identifying encounter, support the Self as the representative of "being alive". There is the "melancholic feminine" which testifies to the lack of separation of subject/object.
Keywords: co-creation, Self, Ego, acting-out, breakdown, psychotic thinking, speculative game.