Shadowheart romance left bitter taste in my mouth, so after her final romance scene in Act 3 she is suddenly ok with sharing and orgies (she was against it in the first 2 acts).
I would not even mind it if she was in a healthy state of mind (or Shar route if she doesn't find out about all that happened to her), but she is a woman who just found out that she was abused (brainwashed, her memory was wiped constantly, beaten, and who knows what else) for the last 30 years of her life, ever since she was a child.
Also what's with Halsin trying to worm up into your relationship, when you reject him beforehand.
In BG3 Act 3 discussion, all I've got was cuck replies (images with cuck written on them), no discussion or anything like like that.