With the help of the most recent contributions from the psychoanalytic literature, mainly from a constructivistic and relational purview, the author analyzes some ambiguous dimensions of the therapeutic relationship related to seduction, love, and power. It is assumed that the seductive power embedded in the psychotherapeutic experience is related to the paradoxical character of the relationship between patient and therapist that is, at the same time, asymmetrical and mutual. The role played by gender differences in the expression of love and seduction between patient and therapist is also discussed. A final reflection is dedicated to the potential and space that transactional analysis theory, from its origins to date, provides to these obscure and elusive dimensions of the therapeutic relationship.