She's unintentionally caused a rift between them. It's noticeable, even with as small as the shift is. He's questioning whether he can love her and keep her safe. It leaves her hoping that her love is enough to keep him from slipping into his own mind. Him obsessively going over details that don't matter now that she's home safe with him aren't going to do him any favors.

"But it did happen. And we'll figure out what to do next."

Her hand seeks his out, simply pressing over it without expectation of him turning his so their fingers can lock together. She never presses when he's like this, too lost in his own thoughts and regrets.

"Do you think it's too soon for a shower?"

That gives him something to focus on. A way to take care of her. He can help her in the shower, a clear plan of action that he needs right now.