I love you also means I love you more than anyone loves you, or has loved you, or will love you, and also, I love you in a way that no one loves you, or has loved you, or will love you, and also, I love you in a way that I love no one else, and never have loved anyone else, and never will love anyone else.
Everything is Illuminated (ed. Penguin UK, 2003) - ISBN: 9780141909882