Doctor Who dosn't belong to me in any way, shape or form. I realy do think the Doctor thinks about them like this.
Spoilers for Season 2.
Summary: The Doctor lost more than just Rose that day.
He first realized it when he was talking to Donna. He had told her that he had spent the last Christmas with family. It was the first word that came into his head when he thought of time.
He didn't know when he began to see them that way. But Jackie and Mickey had become family to him as well as to Rose. They didn't get along at all in the beginning, but they had grown on each other.
He had to admit, now, that all the times he brought Rose home, he was just as happy as she was. And now, they where all gone. He lost them all.