Here's a quick mod that I made that adds a scoreboard to keep track of variables. Just drop the RPY file in the "game" folder and open the game. It displays at the top of the screen and can be toggled off with the backtick key.
For the MC, F and H are your foot/heel status and I is your injuries.
For McNab, R is rivalry.
For Amrit, C is confidence.
For Vi, F is family, A is acceptance, G is grief.
For Rena, FWB is some variable that isn't used yet.
For Kana, I is injuries.
For Els, T is trust and S is secrecy.
For Ines, P is protectiveness.
Otherwise, F is friendship, L is love, and Y is yuri.
PS. I realized after completing this that the cheat mod has something very similar built in, but decided to post this, in case anyone wants it.