Donna walked into the lounge to find the Doctor sobbing in front of the telly as the credits rolled.
"Oh for the love of Pete," she sighed and went over to him. "What now?"
"Donnaaaaa," he whined, wiping his eyes with a sniff. "You don't understand."
"What don't I understand?"
"She made him better!" the Doctor sobbed. "He was a horrible beast, but she loved him and made him better and human again! And he died for her and regenerated because of her love! It's just so perfect."
"Oh no, you did not watch Beauty and the Beast again did you?" Donna shook her head at him. The Doctor nodded shamefully. Donna brought a hand to her face and sighed.
"You're not going to fall in another mopey attitude all day are you?"
The Doctor buried his face in his hands and whimpered, "Rose and I used to watch that movie together all the time. She'd hold my hand and we'd cry together…"
"Okay, that's it," Donna said and went over to haul the Doctor to his feet. "We are going on a trip. I get to pick. Now move your feet. We're going to the happiest place on Earth."
She pushed the Doctor out of the room, ignoring all his complaints and insisting he take her where she wanted to go.
Three hours later, Donna smiled as she watched the Doctor turn bright pink as Princess Belle kissed his cheek. She made a mental note to always take the Doctor to Disney World whenever he was feeling down.