Her hand on his scalp feels nice, and the one on the nape of his neck helps him feel calmer- a product of conditioning from his relationship with Eren. He puts his hand on the nape of her neck as well; a promise of protection. He tries to breathe deeply.

What does he need? He has no idea.

"Ah... Touch is good... Can we... Lay with the dogs a minute?"

All that body heat would hopefully warm him up and help the feeling of security to build.