We have two party member who are survivors of slavery and sexual violence: Astarion and Halsin. In case of Astarion his whole character is based on this theme hence, I think, this theme is brought up i? not in a perfect way but in a good way. Throughout the game we learn more and more of how he was abused and those facts have impact on us. I think one of significant moments is conversation with Astarion after meeting drow Araj Oblodra in Act 2, he talks about how he was used and no one cared about what he wants. So, the goal for some players (I say some, because we are all different and have different opinion on companions) is to help him to overcome his struggles and to help him understand he is not a slave anymore, he has his own will, help him to heal his wounds. We have empathy to him.
In case of Halsin his story with drow also have an impact - we want to discuss it more openly with him since, even though it was long time ago, we don't really know if he had overcome this (I personally in my head had an idea that he propably had. He knows that being chained for three years was wrong, but he also told us he had to do such things because he wanted to survive). But we get nothing. As I proposed earlier, it would be nice to expand this story (especially for drow and half drow Tav) and talk about it, because we, as player, are worried about his feelings (especially if player romances Halsin). Or, as some people proposed, just get rid of this dialogue (I would prefer expansion).
Now, about hypersexuality - I have an example of person who survived sexial violence and who expessed signes of hypersexuality and confusion of sexual orientation (what I mean is that person started questioning heterosexuality and started gay relationships). Right now the situation ended up well, this person has heterosexual relationships, is married and and happy. So, can trauma can be the reason to Halsin's present behavior, the reason which makes him struggle with relationships? I think, yes, but in this case it would need to have more work and additions to his scenario. maybe exen changes.

Originally Posted by Madguise
Before the game released dave did post some tweets regarding working with the scripts and john. there was one post where dave was embarrassed to read the script and he said john encouraged him to "think of all the the fanart that'll come out!"
Damn, I didn't know that, I feel sorry for Dave, he did such an amazing job (even when he just breathes those breathes have so many emotions). Yes, Halsin is a fictional character, he is not real, but Dave and Halsin's writer made him real for us. He deserves better, imo, not just "funny bear sex fanarts".