Let's be honest here: Larian picked the wrong companions (Astarion and SH) for the whole pseudo-poly option, as several posts pointed out already. They removed important parts of their characterization as soon as Halsin became available to spend a night with and that's what you get if you come up with the idea of adding experimental stuff like bear sex, superficial polyamory and such late at night or whatever.
Right, its totally fine to change characters just for them to be willing to have sex with Halsin. I get it, sex sells and social media is happy about it.

Halsin was never meant to be part of the whole companion puzzle but more like a glass of wine beside it, kind of a treat you can enjoy after solving the puzzle - a broken glass that always pours wine on 2 pieces of the puzzle until they are soaked with it and you can't use them anymore.
I'm pretty sure that if they kept Halsins EA character (which was what people asked for) it would have worked out really well - even without the need of him being oversexualized or changing other characters, too.

@EdaLee: You totally remind me of Seto/Jenset, but I won't make any additional comment on that.

If you want to answer to any of my posts with just hate, please just don't answer at all.

If you want just to white knight everything and can't accept opinions, please don't even answer me.

Thank you!