In this paper I describe how I integrate the interpersonal psychoanalytic idea of transference-countertransference with the systems idea of couple's fit. I define the two constructs as I use them, including a redefinition of couple's fit. The redefinition includes both the similarity of a couple's fears and the complementarity of the partners' styles of coping with those fears. I also contrast this integrative approach with that of projective identification. Finally, I describe a countertrans-ference enactment with a couple to show that discussing such enactments can offer great therapeutic leverage. After the discussion, the therapist may find the connections between how the two people in the couple relate to each other and how the therapist and couple related. Clinical vignettes illustrate these ideas.