"What was the last thing you remember doing with me?" If she said that it was saying goodbye at Bad Wolf Bay he would probably die. Though he hadn't had much time this past time, he had finally been able to have Rose understand his feelings for her. It would be so hard to tell her himself. Have her understand that he would have given anything to have her remain at his side for all of eternity.
"There is. It's a long story. But in the end, he was part human and couldn't remain in our world. So you took him back with you to be with your family. Rose... I..." He moved and settled himself down on the bed and took a deep breath. "You haven't met Donna yet, or Martha. Or seen that Jack's alive. You haven't fought the Daleks again. You know they stole the Earth? Took it right out of the Milky Way." He was rambling but he knew he'd have to explain to her all that had happened. Needed her to understand how much he had missed her, how much he had broken without her.