Agreed. I feel like adding some personality/autonomy to the NPCs would immensely add to the game. More so than pregnancy imo. A lot of people are asking for pregnancy but I feel like NPC personalities would keep me far more entertained until pregnancy comes rather than vice versa.
Maybe jealousy and story changes depending on relationship for Special Characters will be implemented for Background NPC simulation on the Roadmap. This is what I'm really hoping Anthaum develops next after Greek life!