Two choices, and you get to choose as always.

The moment Catrin heard Idris, her expression turned a shade paler. 

However, she quickly recovered and put on an aggrieved face, staring at him as if she was wronged by him. 

"Idris, how could you even accuse me of something that despicable? Is that what I am in your eye?" she demanded in a tone that said that his accusation had pierced her heart most brutally. "Arwen is not just your daughter. She is mine too. I was the one who carried her for nine months, sacrificing my comfort. How can you even say that I, her mother, am trying to play against her." 

Previously, whenever Catrin would try these guilt traps, it would always work on Idris. 

But this time, he dryly laughed as if he witnessed something he had expected. 

"Idris —"