He is not startled by her movements and finds himself relieved that she's taken no offense to his past unexpected outburst. When she touches him, it no longer registers as some sort of forbidden stimuli he is not meant to care for. It is simply Anna. "If that is what you wish."
They've not walked together before, though he welcomes it, if only because the last time they were anywhere at night together, he'd been begging her to give him orders in regard of how to handle the situation following Alastair's escape from his trap. This is preferable to that. He'd not meant for Anna to feel as if he thought she were trash and he hoped she didn't still feel that way. It was very far from the truth.
"How do you know when you are feeling a specific emotion?" he asked, walking beside her. "How do you define any of them?"