Did you make sure you have enough yandere points?
Viewing post in Bug Fixes + Date 3 Bad End Guide comments
I think I know where I did a mistake I thought It was obvious answer but I tried different one which didn't look that important and now I enjoy it thank you for your concern and for this game I really love the jekyll and Hyde vibe (which is one of my fav book so Tenebris caught my attention immediately)