This study was conducted to examine the effects of early adult attachment styles on intimate opposite-sex relationships. In particular, this study focused on the theoretical duality of attachment. Thus, for examining the validity and adjustability of attachment styles on both relational and general distinctions, the images toward romantic love and experiences in a specific relationship were distinguished in this study. Subjects were 449 undergraduates. The results revealed that (a) "secure" individuals tended to have relatively positive images toward romantic love, showed high scores on Sternberg's three components of love, and valued the importance of the relationship highly, (b) oppositely, "avoidant" individuals had relatively negative images toward romantic love, showed low scores on the three components of love, and did not regard the relationship as important, and (c) "ambivalent" individuals tended to hold an image of romantic love as one which imposes restraints from their partner. Moreover, causal models of the influence process among variables were constructed and analyzed for each attachment style, and the results showed that three attachment styles had different influence processes respectively. These indicated the self-fulfillment of attachment styles. These results are discussed in terms of the validity and continuity of attachment styles.