Kathryn: Silly rabbit. My triumph isn’t over her. It’s over you.
Sebastian: Come again?
Kathryn: You were very much in love with her. And you’re still in love with her. But it amused me to make you ashamed of it. You gave up on the first person you ever loved because I threatened your reputation. Don’t you get it? You’re just a toy, Sebastian. A little toy I like to play with. And now you’ve completely blown it with her. I think it’s the saddest thing I’ve ever heard.
Therein lies the cruel intentions of the film, a person actively manipulating time and time again and dares to sabotage someone’s chance of true love, a better life and preventing their path to true repentance. Here we had a soul who was destructive and was ready and willing to change and do good and the person he had an unholy tie with (they were both rotten souls originally and are step-siblings) she just thrashes his chances and it costs his life….