I'm really sorry, Cowoline. I totally understand, that in your situation, Halsin acting as he is, is traumatic. I said it before, his characterisation in act 3 is a mess and extremely toxic and if he triggers real life trauma it is even worse. In the game are a lot of topics, that are difficult to handle like Astarions abuse through his master, Shadowhearts brainwashing, Karlachs traumatic experience in hell. Kids loosing their parents.
I think in most cases, those topics are handled very well, but somehow, they botched it with Halsin.

"We are all stories in the end. Just make it a good one."

Doctor Who