Originally Posted by Filia
Thank you, this is really well written. If SH would be like this from the beginning, it would be totally fair and expected to be like this. Same goes for Halsin. For whatever reason, the writer added lots of inconsistencies to his characters.
If both would be like this from the beginning, people could easily choose not to romance him/her at all if the player doesn't like it. As for Halsin, it feels like Larian was just all about adding their oh-so famous bear sex scene, which was shown with Astarion (a character with high popularity) first and to do so, they wanted Halsin to be like a sex symbol, hence no other content for him in act 3 needed.
And you said, you don't want to hear your LI, who you went through a lot with, talking about sexual dreams with another party member. It seems to be fair to complain about companions's endings, about not being able to hug and such, but when it comes to this topic, the feedback is bad, against poly and such? Sorry, that's not fair.

Easy solution: If you are in a poly relationship with both, this scene should be triggered, if you romance only one of them, just never bring it up. Same goes for some party banter between Halsin and SH or Halsin and Astarion.
If the game's logic notices that you are in a relationship with only one companion, then it should treat it like that and not trying to come up with several options to add another companion to it.

I still wonder what exactly the writers intention was while writing the drow scene itself, if you bring SH and Halsin into it. You are degraded to a spectator with the female Drow talking about how she wonders why this didn't happen earlier.
It's similiar scene for without Halsin, female drow says exactly the same. It's your imagination playing, but I see why might imagine this scene playing liek that(after all remember that SH encourages your character to come join if you decide to stay away and comment). W/e about the scene itself. Noone wants this banter between SH/Halsin to be removed, just put behind active double romance with them(basically it shouldn't play if MC in mono romance with SH), same for drow twins thing, make Halsin invite himself if in romance.