answer: Susan is angry at Roy because she thinks Roy is in love with Janet and she is envy Janet. Roy says he likes Susan deeply but Susan doesn't believe him.
documents: #Person1#: Honey, why are you so angry? Can you tell me?
  #Person2#: You don't love me, Roy.
  #Person1#: Why do you say such words? I love you very much.
  #Person2#: No, you used to be. But not now. You are in love with someone else. You are in love with my friend, Janet. You appreciate her very much. You think she is beautiful and fun to be with and you think I'm dumb and uninteresting.
  #Person1#: Susan, just one last week I went out to have a lunch with her. There is nothing for you to be jealous about. I like your company much better than Janet's.
  #Person2#: I envy her and also I hate her at the same time.
  #Person1#: Honey, you should know that I love you so deeply.
  #Person2#: Oh, shut up, Roy.
  #Person1#: But honey, I think you're terrific. There is nothing. . .
  #Person2#: Oh, SHUT UP!