Rosenfeld's first book, Ethics and Enjoyment in Late Medieval Poetry: Love after Aristotle (Cambridge University Press, 2011) explores the influence of the belated reception of Aristotelian ethics on the way medieval philosophers and poets wrote about love, pleasure, labor, and human happiness. The book also examines the legacy of “courtly love” in the psychoanalytic ethics of Jacques Lacan. Her current work turns to the history of emotions—love and envy in particular—to consider questions of ethics, politics, and gendered identity. In 2012, she was awarded a Charles A. Ryskamp Research Fellowship by the ACLS. She has recently published essays on John Gower’s Confessio Amantis (JMEMS, 2012), Chaucer’s “Parson’s Tale” (in Middle English Literature: Criticism and Debate, Routledge, 2014), and The Book of Margery Kempe (Exemplaria, 2014), and has essays forthcoming on The Romance of the Rose and an early fourteenth-century French adaptation of Aristotle’s Ethics. She co-edited a collection of essays, Chaucer and the Subversion of Form, published in 2018 by Cambridge University Press.