I tried to get level 2 from behind the curtain, but I still cant unlock it. Which scene are u referring to. How many points on level 1 do you need to get level 2?
This is not right. You need to see and do a certain scene to trigger upgrades to level 2 skills. Nothing to do with increasing numbers.
Dominacne lvl 2 comes from a scene where you are teaching her to train and fix her posture (Himawari) and you cannot get to that until you have her obedience level 2 (the bikini photo shoot.)