...

Staring out of the window thinking about how Saber was created with a dragon heart so she would be strong enough to lead Britain into the age of man, but by leading Britain into the age of man she turned the world into something fundamentally incompatible with any sort of mystical creature, which includes dragons, which includes herself. Saber was made specifically to bring forth a world fundamentally incompatible with her own existence. There was never a way for Saber to live through this.