Re: Rose Tyler
Jack manages to acknowledge the Doctor with a tight nod, but can't bring himself to react otherwise to the squeeze on the shoulder.
Then Martha is there, touching his arm as she walks by him, bringing a rose as well. Her words are brief but perfect. He tries to find his voice, to say something to both of them, but Martha hurries away. He turns his head to follow her, wondering if she's alright. Perhaps funerals upset her. He'll have to ask later, when he can bring himself to talk about it.
The Doctor hasn't spoken, but when he turns, there are tears on his face. He looks devastated, and though they are two very different men with very different faces, the similarity in their current expression makes them seem as brothers.
Jack stands. He walks toward the Doctor, his face crumpling before he quite reaches him, and holds out his arms for a hug, a Captain Jack smile trying to form on his lips.