Clarissa saw everything that Sally did and heard everything she said, and inside she wished she could do that. When she sees Sally at the party at the end, she is disappointed that her life isn't much better when she used to think so highly of her.
Aside from the main characters being juxtaposed, the supporting characters are as well. Peter and Lucrezia work with Clarissa and Septimus in the same way. Peter wants Clarissa to be more like the way she was before marrying Richard. He thinks that she has gotten much worse since being with him. He worries about the way she acts because he knows that she is a much better person than someone who just puts on parties. Lucrezia also knows that Septimus is not just a crazy person who can't handle himself. They both try to encourage them to go back to living a good life. The problem is that neither truly understands them. Septimus is happy in his life, even though Lucrezia is extremely conscientious of his actions. Clarissa also knows that she enjoys life and can find beauty in things. She thinks that people think she only cares about her parties, and Peter is one of those people.
Clarissa and Septimus also have someone who is out to get them. Miss Kilman thinks that Clarissa is just a meaningless person with a meaningless life. She would have pity on her, except she thinks that Clarissa is corrupting Elizabeth. Clarissa cares about Elizabeth, but Miss Kilman tries to turn Elizabeth on her. Sir William Bradshaw also doesn't listen at all to Septimus. He writes him off as crazy from the start, and thinks that he should have all of the say in Septimus's life. Both of these characters think that Clarissa and Septimus aren't smart enough to know what is right for them or the ones around them, and they try to take everything away from them. When Clarissa meets Sir William at the party, she draws an instant dislike to him and decided that Septimus probably killed himself because of him.