Final answer:
The ultimate pattern of love according to Sternberg's triangular theory is consummate love, combining intimacy, passion, and commitment. Romantic love has passion and intimacy but no commitment.
Step-by-step explanation:
According to Sternberg's triangular theory of love, the ultimate pattern of love is known as consummate love, in which all three components of love - intimacy, passion, and commitment - are present in the relationship. Sternberg described seven types of love arising from different combinations of these three elements, each reflecting a unique aspect of a relationship. The type of love that is defined by having passion and intimacy but lacks commitment is known as romantic love.