In S1E11, Madeline and Louise are talking about who Mr. Medina is dating, and Louise guesses that his girlfriend is dumb, because “dumb girls crave smart men. It’s the whole ‘Marilyn Monroe/Arthur Miller’ syndrome.”
Marilyn Monroe was an actress in the 1940’s and 1950’s. The characters she played tended to be “dumb blondes.” She actually hated the typecasting and almost turned down the leading role in “The Seven Year Itch.” She married Arthur Miller in 1956 and they divorced in 1961.
Arthur Miller was an American playwright who was very active in the 40’s, 50’s, and 60’s. He is probably most well-known for “The Crucible” and “Death of a Salesman.”