[She is surprised but touched by the hug. She very, very, very carefully attempts to hug him back, not applying much pressure. The feeling of being hugged is extremely blunted by the metal, and she knows she's stronger than ever in this form. It's hard not to think this is how it felt to Piotr on his side of things, trapped in his protective shielding, unable to release it with his injuries. So much of their relationship was spent with this impervious layer between them.
But she isn't hugging Piotr right now, she's being hugged by Nathan. A boy with his own troubles which, all things considered, are a lot harder to deal with then a lost love or even three.]