Who is Dave from Wasted: A Memoir of Anorexia and Bulimia and what is their importance?

Dave is a man with whom Marya has a fling. Dave approaches Marya while she tries to read one night in a café. After only a few hours, Dave decides he is in love with Marya. As a result, Marya takes him home to her parents' house. They spend the weekend having sex and enjoying each other. At the end of their weekend, Marya drops Dave off at the café with instructions not to call her.