Who is the narrator and why does he feel he owes a great debt to Georgiana?

The narrator in "The Birthmark" is Aylmer, Georgiana's husband. He feels he owes a great debt to Georgiana because he sees her as his perfect and ideal woman, but he is also driven by his scientific curiOSity to remove the birthmark on her face. He believes that by doing so, he can attain perfection and rid her of her only flaw.