Far back in the very initial concept of this story it was even more awkward because I had initially thought I'd have Joan as part of the story too which would have just made it super duper awkward for everyone. Changing up the story actually made me explore Martha's character a lot more than I think I would have in that version even if I ended up keeping the main action with the Doctor and Rose (and their alter egos).

Anyway, glad to keep hearing you enjoy it.