With him being happy, it's a good thing she did just keep on sitting there instead of leaving. No matter how callous acts towards other people, she cares more about their feelings than she lets on to - or at least, she does when it comes down to the feelings of people she actually likes to some extent. She would definitely feel guilty on the inside if she let Duo down, no matter what parts of that would or wouldn't show.

She even picks the red bucket up after he puts it down for her, giving it a curious glance as she speaks.

"No. My father was always very busy when he was still alive, so we didn't exactly have many beach outings." Not to mention that it would take a while to get to the sea from Oxford anyway without modern transportation methods.. And in the asylum she was locked up in a room for years and years, so that kind of shoots down the chances of any outings, let alone to the beach. "And I assume most people would say I'm too old for this sort of thing by now."