Who is Gigi Boudakian from Inexcusable and what is their importance?

Gigi Boudakian attends the same high school as Keir. Her father is a carpet magnate, and her boyfriend Carl is in the Air Force.

Keir and Gigi grew up together, and Keir thinks he is in love with Gigi. She is warm, positive, fun and gentle. Gigi defends Keir to his sister and encourages him to think of himself in a positive light.

Sadly, Gigi and Keir's prom date ends badly. She is frightened, angry, and has been raped by Keir, who she believed was her friend.