I am so sorry. It was extremely triggering for me also. So much so I have had to delete that save and I can't play my favorite character anymore.
There is a thread here
https://forums.larian.com/ubbthreads.php?ubb=showflat&Number=879967&page=47Where some of these things have been discussed.
I am so sorry
You're not crazy. My story is similar to yours, and I am two months after still having anxiety attacks and nightmares from the combination of traumas Halsin brought to life.
I thought Halsin would make me feel safe.
He made me feel entirely unsafe.