Despite it was deemed as 'domestic' according to the Doctor's standards, Rose Tyler was very happy indeed on one tradition that they had fallen into.
Every night that they could, they had ended up on one of the many couches in the media room, watching TV, Rose normally resting her head on the Doctor's chest, his arm securely wrapped around her shoulders.
One night, she witnessed something that made her heart flutter. The Doctor, his head resting back on a throw pillow, his eyes closed, and he looked so peaceful.
She had fallen bored with the TV program that they had been watching, and decided to watch a DVD. Rose Tyler had never told the Doctor this, but she had a favourite movie since she was a child.
As the opening scenes of 'The Little Mermaid' starting playing, Rose snuck another look at the Doctor, who seemed to be asleep.
However, the Doctor was wide awake, trying not to grin at how adorable that Rose Tyler loved that movie.