Arwen had the vaguest idea that something was up. She didn't know what it was, but it was there. Empathy meant it was occasionally possible for Arwen to pick up on obscure 'somethings' happening around her, even if she had no idea whatsoever what they were. Emilia asking if she'd spoken with their mother made this idea start to solidify. Their mother was living with Arwen, of course she spoke with her regularly. Daily. What was it, specifically, Emilia was asking about? Then Desi joined the group and Arwen was able to pick up on a strange emotion. It was hard to put her finger on a name for this emotion, it felt like... a stress? A guilt? It felt the way Arwen felt when she danced around something she didn't - no, couldn't - talk about.
Raising an eyebrow, Arwen leaned back and looked between the two of her sisters. I'm not going to push, she told herself. Something is going on, and I'll wait for one of them to clue me in. Emilia probably 'overheard' that, but, well, Arwen wasn't the one keeping secrets. "Oh, I certainly am," she answered, not missing a beat. "Mom and I have similar tastes where that goes."