Jacqueline Rayner said this quote
“ There you go, being human again,' said the Doctor. He put an arm around Rose, and hugged her to him. 'It's not fair, is it, when we're forced into pitying someone we hate. Feels like the world's turned topsy-turvy. But it's all right. You're still allowed to hate them. As long as you don't gloat at their downfall, that's all. ”