This article studies the relationship between love and violence in Celestina. It departs from Octavio Paz’s essay La llama doble, in particular, the difference be- tween eroticism and love, and the acknowledgement of a dark and destructive side within sexual desire. It concludes that desire is the main driving force of the plot in Celestina and that its destructive side is revealed in the violence inherent to the relationship between Calisto and Melibea.