Duvessa is both a nympho and an extreme extrovert who feels a lack of purpose when there aren't other people around. I didn't think it would make sense for the player to be capable of doing a run where she never gets laid.It makes sense to me for it not to be up to the player because it would pretty much remove her from the plot of the story if Duvessa didn't take an interest in her, and I bet you have it planned for her to play a crucial role in the story later down the line. But that's just my speculation