Rose bit her lip as the Doctor spoke, and then reached out and gave his hand a tight squeeze. "I'm so sorry." She said softly as he watched him carefully. "It must be so, lonely."
She felt another pang of guilt. Already so lonely and now her, his apparent friend of the future, had no idea who he was. She honestly wished she could go back and change it - she would if she could, in a heart beat. "So close and yet so far then, huh?" she joked a little lamely, slightly wry smile on his face as she gave the Doctor's hand another squeeze. "Have we been friends for long?"