I can totally see them sneaking around the corridors at night and - literally - bumping into each other, and then arguing over whose room is closest.

Yeah, I also dislike how some fics seem to imply that Romana was such a disaster at going it alone that the Doctor had to rescue her from everything. Which reminds me that I read about this scene from one of the novels in which Seven and Romana do the whole catching-up-with-fingers-on-temples-thing and Bernice Summerfield is looking at theme like ''WTF?'' and Ace says something like ''Sickening, isn't it?'':D