I think you are perfectly correct in assessing Diana. How Robert sees her and how she actually is are two different things, and I like the direction that you seem to be taking with her! Mind you, a side comedy-romance between her best friend and one of the officers could also make for an amusing back story! That's neither here nor there, but I thought I would throw that out there. In all honesty, Diana is your character. Evolve and shape her as you will, and I shall not wish for you to play her any differently than that. Do not worry about being overly anachronistic! The idea is to simply flow with the general zeitgeist of the time; I'm sure if an expert in the time period were reading this, s/he would point out several glaring historical errors of my own. More importantly, the idea is to have fun telling the story together. I just got back in from a convention a few short hours ago, so I’m off to bed. With luck, I should have a reply for you by tomorrow evening.