The reason they were all hesitating was because they knew how much Arwen loved her mother.
They all have witnessed her sacrificing it all for the lady's happiness and her satisfaction. They dared not say a wrong thing about her and hurt Arwen's sentiments.
"Alice, we all must have misunderstood. What's the use of mentioning it now?" Aled spoke, trying to refrain the girl from saying it further.
But Arwen didn't let them stop her anymore.
"My mother?" she asked, turning Alice to face her. "What did she do or say to you?"
She knew Catrin had always been hostile towards the people who didn't come from a good family background. And because of that, she had always abstained from having friendships with the people who couldn't come to any aid.
But Arwen never cared. If Catrin asked her to not make such friends, she would just be careful to not let her find out.
