When Agnes was born, she was born to be a traitor. When Seth was born, he was born to bring a change.
Agnes lived for herself. She hated the Base and its values. She would have betrayed it sooner or later. However, Seth wanted to change the way all angels were supposed to be the same way. He wanted to make them see how different they all could be.
Still, Seth and Agnes could relate. They embraced each other because they did the same thing even though their purpose and thoughts might not be the same all the time.
Seth watched Agnes sitting in front of the mirror, naked. She should have been asleep. He sensed her waking up. She then got up and went to the mirror. She watched herself, the marks on her body that he made.
Seth watched her for a long time. She was not moving. She simply watched herself. The mirror was not showing anything either. She was watching herself only, it meant.
Their eyes met in the mirror.
"Why do you like me?" she asked.