About three things I was absolutely positive. First, Edward was a vampire. Second, there was a part of him-and I didn't know how potent that part might be-that thirsted for my blood. And third, I was unconditionally and irrevocably in love with him.
In this passage, the narrator expresses three definitive thoughts about Edward, highlighting his vampire nature. The first certainty is that Edward is indeed a vampire, a crucial aspect of his identity. This revelation carries an inherent danger, as the second thought reveals that there is a primal urge within him that craves her blood, adding tension to their relationship.
The third point encapsulates the narrator's deep emotions, revealing a profound and unconditional love for Edward. Despite the risks associated with being involved with a vampire, the narrator's feelings remain unwavering. This conflict between love and danger sets the stage for the complexities of their relationship in the story.