Portia is the romantic heroine of the play, and she must be presented on the stage with much beauty and intelligence. Of her beauty, we need no convincing. Bassanio's words are enough; thus we turn to her love for Bassanio. Already she has given him cause to think that it is possible that he can woo and win her, for on an earlier visit to Belmont, Bassanio did "receive fair speechless messages" from her eyes. And when Nerissa mentions the fact that Bassanio might possibly be a suitor, Portia tries to disguise her anxiety, but she fails. Nerissa understands her mistress. Portia is usually very self-controlled, but she reveals her anxiety concerning Bassanio a little later when he has arrived at her mansion and is about to choose one of the caskets. She has fallen in love with him, and her anxiety and confusion undo her. "Pause a day or two," she begs, for "in choosing wrong, / I lose your company." She thus makes sure that he knows that it is not hate that she feels for him.
Bassanio's correct choice of the casket overwhelms Portia. She wishes she had more of everything to give Bassanio: "This house, these servants and this same myself / Are yours, my lord: I give them with this ring." She willingly shares all she owns with Bassanio. Once master of her emotions, she has fallen completely under the spell of love's madness. Love is a reciprocal giving and receiving, and so it is with perfect empathy that she sends her beloved away almost immediately to try and save his friend Antonio. They will be married, but their love will not be consummated until his friend is saved, if possible.
