Final answer:
David is experiencing fatuous love according to Sternberg's triangular theory of love, which includes passion and commitment without intimacy.
Step-by-step explanation:
According to Sternberg's triangular theory of love, when David is experiencing passion and commitment without intimacy, he is experiencing a type of love known as fatuous love. Fatuous love is defined as a scenario where strong emotions and a decision to commit are present without the development of a deeper intimate understanding. This could be seen in relationships where the emotional and physical connection moves quickly into commitment without the partners truly getting to know each other on a deeply personal level.