how about two versions of each ending since you have the calm state you could make two versions of each ending 1 where you show the young yandere respect and stay near her and sorta protect her from her demons per say
the other is disrespect where you always run away you hit her eta
the diffirence would be based on how yandere acts for example in the yangire ending where the two split you apart if you try and be nice to them basicly always in vision never out of it for to long they yandere will spare you this fate to instead capture you and leave you in their basement
basicly kinder endings based on if your a dick or not