Reading different threads about Halsin on this forum really sheds a different light on this whole topic.
So many people who don't romance him and have no intention of doing so are literally so disgusted and put off by his behaviour in Act 3 that they kill him off the earliest chance they get.
Crazy how nobody at Larian has addressed this so far. It's a visceral reaction from the majority of players. And this is completely ignoring the poly-mono-discussion.
I mean, shouldn't alarm bells start going off at this point?
I think it's worth mentioning that I romanced Halsin without engaging in any flirtation with other characters and I didn't get any sexual, odd or otherwise weird lines from Halsin at all. Matter of fact, he says nothing. Bug or intentional?