 As soon as she's alone, the Duchess says that she doesn’t plan to tempt or betray him, but to secure “the promise I first made to love and honour,” which is her contract to Alvarez.Alvarez comes in and they discuss their love and plans to be with each other, which are currently being mucked up by the Cardinal and Columbo.The Duchess wishes for Columbo to die in war or else give up all thoughts of her.