This is the first time we've seen Portia in a long time, and she's a little nervous. She's worried about what's going to happen to her when she leaves her lover. She doesn't want him to think that she is "an empty woman" . She also worries about what he's thinking when he sees her leaving him after sex. Portia is a little worried about this, but she also knows that it's just her nature to be a little creeped out by other people's sex desires.