Cursed Twins

Brother: "Let it be told."
Sister: "Let it be silence."
Brother: "Let it live."
Sister: "Let it die."
Brother: "Death?"
Sister: "Life?"
Brother: "I don't understand."
Sister: "It's perfectly clear."
Brother: "Are you blind?"
Sister: "I can see!"
Brother: "You are afraid?"
Sister: "Bravest of them all!"
Brother: "You're such a freak."
Sister: "Don't act so normal."
Brother: "...."
Sister: "Hm."
Brother: "I'm sorry."
Sister: "I'm not."
Brother: "Look at us!"
Sister: "Look away."
Brother: "But, I love you."
Sister: "I hate you!"
Brother: "Hate me?"
Sister: "Love me?"
Brother: "I-I don't understand."
Sister: "I do, it's perfectly clear, we are curse to be opposite on everything."
Brother: "Not true, we are the same, we are twins."
Sister: "We can never agree."
Brother: "Yes we can!"
Sister: "I prove my point."
Brother: "You prove nothing, you lie!"
Sister: "I tell only the truth."
Brother: "You're a liar."
Sister: "I disagree."
Brother: "Well, I agree-"
Sister: "Heh heh!"
Brother: "..."
Sister: "I can prove it."
Brother: "You can't prove anything."
Sister: "Black."
Brother: "...White."
Sister: "Moon."
Brother: "...Sun."
Sister: "The End."
Brother: "...The Beginning."
Sister: "Do you see?"
Brother: "No, I am blind."
Sister: "Hmm."
Brother: "...."
Sister: "I love you."
Brother: "But, I ha-"
Sister: "I understand."