I am not even sure what they were going for with the orgy. At the moment my best bet would be: Making fun of thirsty players or those who care for their romanced companions. I might not even be that far off because the whole "Daddy Halsin" joke is pretty obviously making fun of players.
The odd thing about the orgy is, while I am very uncomfortable with the player character and Halsin in the scene, I am mostly impressed with Gale himself. He was coerced into an extremely uncomfortable situation - by someone who should know better - but gets himself out of it in the end. Rooting for Gale probably isn't the intent of the scene though, otherwise he would have been allowed a few choice words in the aftermath and an opportunity to send the player character packing.
In regards to Halsin I wish they would make his proposition trigger only if you talked with him about past lovers before. It's one of the reasons he gives for approaching you, if I remember correctly, but currently it doesn't track if you actually talked with him about the subject. Because I completely agree regarding to Astarion, in addition to the overall situation, Halsin also had the worst timing in my game. But we've already had that in one of the other threats on the subject.
For Gale as shitty as those dialogue options are, at least you shouldn't be surprised at that point, because it's apparently a running theme with him.
Coming from all the discussions, yes. Coming purely from his romance, it's a change, at least to me. I might forget something, but if memory serves, you can always pick answers that indicate you are just as smitten with him as he is with you and most of the teasing is written like good natured banter, while the mean lines are more direct. That's besides the point that you learn in his Act 2 romance Gale is more into the whole Weave thing because it's about joining souls and sex is described as "the exploration and acceptance of the self and the other" in his tantra book, add to this all his self-doubt issues and that whole brothel conversation gets a bit worse still. Especially, if you consider that you have three chances to opt out off his whole Weave-Tantra things if you uncomfortable with it, to which he complies without complaint and still tries to make everything as nice as possible.
^^ But what the brothel needed more than anything, was of course, a cut scene.
