Bethany was happy in the dream, but when she was awakened, her personality dramatically changed to being violent and hateful. Because of this she is passionate about guarding the bluepills from being liberated from the Matrix, believing that she is a hero. As a result, she also fervently despises redpills and would passionately slay them by her own hand.
This article is based on information from the game, The Matrix Online. Information in this article may contradict situations and events from the Matrix movie trilogy.