Stonecast question

I just cannot recocile myself with the fact that Alexandra didn´t really seem to blick an eye that Caleb tortured Stanis.
She is supposed to have a deep connection with Stanis, there is no way that you would dismiss that someone willinly hurt someone you care about. But this was skimmed over.

I in Stanis place would feel betrayed by her actions.

Then she starts a relationship with the guy and is jealous of the interaction Stanis has with his people.