How would Applejack feel when she realized that her new friend, as casual as their acquaintance currently was, turned out to be a spy? An alien spy from an entirely different world? For that matter, how would Rainbow Dash, or Twilight Sparkle, or Pinkie Pie react? All of them had been so kind to her. Would they accept her as a human? Would they continue to be friends once she revealed her purpose for coming here? 