In the world of My Gay Middle Ages, Chaucer and Boethius are the secret-sharers of A.W. Strouse’s “gay lifestyle.” Where many scholars of the Middle Ages would “get in from behind” on cultural history, Strouse instead does a “reach around.” He eschews academic “queer theory” as yet another tedious, normative framework, and writes in the long, fruity tradition of irresponsible,…