I am and always will be the optimist. The hoper of far-flung hopes. The dream of improbably dreams. --Thinking of getting "Dreamer" as a tattoo on my wrist. If my wrist were bigger I would consider "Optimist, Hoper, Dreamer"
But remember the Doctor's face in this scene. He is not overjoyed at the reunion. He is shocked at what his companions have become. Martha Jones, willing to destroy her race to save the Universe, just like the Doctor. And Rose Tyler, cheering it on.