Neutral expressions allows for both parties to enjoy, not catering to the extremes. not super happy or super sad. I would think that would be "perfect" for you since it does not allow anyone to "possess" the romance?
I was just editing that in that I think it's a much better solution if you are going to have that as the only option.
In that case, add such "options" to all companions, please. Not just the Ascended Astarion.
