Hmm... I'm not sure about that second questionairy, how characters feel about one another.
The way I imagined it, is that most of the characters will be new to the Ludus. As such they won't really know yet how they feel about other characters, usually that kind of thing builds up over time ICly. I know how Baersun feels about the owner and Leonidas, purely based on their ancestry, and he'll likely have feelings for Geila when he discovers where she's from, not to mention, have a general weakness for the women, but that's about it. The mistress would probably be pretty high on his blacklist too, due to her associations with the owner, but this could change if she treats him particularly nice and makes sure he has a good life there. It could also force us in a hate/ love relationship with characters before we even really established our characters.
The other 2 are definitely great ideas though, but I'm not sure about the afore mentioned.