NPC proposal reaction

I don't know why they didn't put this msw and I suggested it then so I'll suggest it again can we please have NPC reacting to a proposal? How is it that we have NPC Sims reacting to a fight but not a proposal like Sims already looking at two people getting engaged let them acknowledged that with a surprise face, a smile clap and Cheer or if they're in a bad mood react negatively but at least they giving a reaction instead of nothing at all. Where do you see people not reacting to a proposal no where someone is reacting good or bad.