The present study aims to investigate how a couple is constituted from the point of view of their love choice, based on the psychoanalytic approach. In the study, we value the intrapsychic and intersubjective aspects as constitutive conditions of the subject. The constitution of the couple is based on the narcissistic and libidinal investments that each partner establishes for himself/herself as a bonding representation. At the moment of the love choice conjugality is installed and the partners individuals unconscious are mobilized bringing forth the rising of the couple. Therefore, our interest in this work on the formation of the couple and the love choice is the central role of oedipal longings in the unconscious content of erotic desire. We can say that on the individual level, the choice of the sexual object allows a convenient solution to the Oedipal complex and the interdiction of incest. The study of the love choice values the Oedipal weft that marks the subject s history in its otherness, inserting it in the field of the other partner. From the couples psychoanalytic perspective, in the constitution of conjugality two subjectivities are involved, coexisting, in the conscious and the unconscious aspects, forming a dynamic structure, whose psychic place constitutes the I-couple nucleus. This shared place in which the couple is constituted is, therefore, the continent and source of innovative and creative solutions.