What is the author's style in Fool for Love by Sam Shepard?

Near the end of Fool for Love, May and Eddie each have long monologues which allow them to tell their version of their shared past. When Eddie finds himself alone with Martin, May's date, he takes the opportunity to relate his and his sister's past. Eddie does this to shock Martin, scare him away so that he can have May all to himself. Eddie tells Martin about when he first met May, not knowing that she shared the same father as he. Eddie emphasizes the fact that they were in love from that first moment onwards.