SPOILER?
I've played through BG2 multiple times, and I've decided to give one final effort on changing Viconia's alignment. My previous attempts were unsuccessful.
I've completed the confrontation with the Master Wraith, and I'm about to fight Yaga Shura. From what I've seen in other forums on this site and others, before the battle with Yaga Shura, you should get the dialogue where Viconia asks to resume the "physical relationship," and another one afterwards where she complains about you glaring at her. However, I've never gotten any of these. I've tried resting multiple times in multiple locations, and simply waiting for about 45 minutes. Nothing happens. Can anyone offer me some insight? Here's some of the data:
EXPLOVETALK = 5
VICONIAROMANCE = 1491066 (I'm not sure what this is)
VICONIAROMANCEACTIVE = 2