According to psychoanalysts, Jean is fixated in the "oral" psychosexual stage.
The first stage of psychosexual development is the oral stage, traversing from birth until the age of one year, wherein the newborn child's mouth is the focal point of libidinal delight got from the joy of nourishing at the mother's breast, and from the oral investigation of his or her condition, i.e. the propensity to put things in the mouth.
