Oh, I haven't seen this thread. Interesting.
First of all, I sympathise OP and people who had traumatic experience. I had no such experience, but I have people around me who had.
Concidering that this scene ended up being very controversial, I would also agree with people who would like it to be completely removed from the game. I have a feeling it was added as a joke, as something "spicy" to make Halsin look even more of a sex machine (in some way). Many people don't like the whole idea of overly sexualized Halsin at all, especially people who have seen Halsin's Early Access version and wanted this particular elf to be their companion and LI (for some reasons Larian decided to change him though his characted was already good. I have EA version right now and yes, Halsin was different).
About backstory... Well, Halsin should've had a backstory, an interesting and dramatic one. His story was intertwined with Thorm family, some pieces existed in EA like a debuff of his glaive, Sorrow which deals psycic damage each time the wielder deals damage (it is still in the game but has no debuff) and a note where he writes about Ketheric (it could've been found in the Grove's library). He could've had strong story, personal tragedy (originaly he was the one who killed Isobel, but we don't know how exactly it had happened), his connetcion with the plot of Act 2 could've been mych tighter and in the end Tav could've helped him to atone and live through it (which could be a nice start of their romance).
