Desmond held Luna, simply being there for her. He kept stroking her hair, holding her close, just whispering anything that came to his head. 'Everything will be fine' 'it's okay, let it out' just things that anybody would say in the situation, right? Right? He wasn't sure, despite his caring for her he seemed to have forgotten how to act human, and it felt odd to him. He knew he was human, but he didn't feel like it. All he felt was that he cared for her and he felt bad for her, but he had pretty much forgotten how to communicate what he was feeling. But why? Why did he suddenly forget? He was human, why didn't he know what to do?