Answer:
consummate love.
Step-by-step explanation:
Consummate love: The consummate love is a part of the triangular theory of love proposed by Robert Sternberg. According to Sternberg's theory, love is made up of three different components i.e, commitment, passion, and intimacy and each component signifies a specific aspect of love.
Consummate love consists of all three components and is defined as the complete form of love or an ideal.
In the question above, according to Sternberg's triangular theory of love, consummate love best describes the love Lisa and Katie are experiencing.