Yeah she is being cruel at the moment but its true from her POV. 
Her friend, someone, that despite being her younger, she REALLY admires is dying. When her deal was that Koraakan would keep them SAFE. Which he isn't if Jaelnec's been poisoned. Olan and him could both still die and ultimately the only one it will affect badly is Thaler. Aemoten just accepts death and Thaler CAN'T. The whole place could be burned to the ground by Rilon and the only one that would walk out would be Aemoten. I've never seen him accept responsibility for any wrong doing, they don't listen to Thaler or even contemplate her POV. No matter what she thinks she's made to feel stupid and evil for thinking that way, or has done since the beginning of this in game morning. Where as Olan despite saying 'yeah get rid of the sword' at least did it without belittling her at the same time and Jaelnec, from what I can tell, just doesn't want her to feel bad/sad/guilty for anything at the moment (might change when he realises this is 'all Thaler's fault' in Aemoten's opinion). 
She's breaking and Aemoten hasn't done anything to help that fact what so ever, in fact he's fanned the flames more than Rilon has/had just by the way he's spoken to her.