She can't help it. He may have intended to just rest his hand on her shoulder but she ends up leaning into him, resting against his side before she can really stop herself.

"There are a lot of 'what ifs' and 'could haves'. Wouldn't be war without them, huh?" she said softly, trying to put a bit of humor into her voice and failing. Miserably. "I want to work on your arm, I do. More than anything. I don't--I want to get that tech out of you so we can work on getting you something better that isn't going to be painful." She was determined. If the Galra could make him an arm then so could she and Hunk. And they had enough contacts across the universe that if they ran into any issues they'd be able to reach out and fill in the gaps. One way or another they were going to make this work because if there was one person in their group that didn't deserve this it was Shiro considering everything he'd done for them. Pidge shuddered and reached up to wipe at her eyes quickly, trying to keep her composure but her walls were crumbling down pretty quickly. "The defenses are my responsibility. I've been working to make sure that this sort of thing couldn't happen--couldn't get by us and it did anyway."

Her tech should have been able to pick up some sort of anomaly. She should have been able to pick up some sort of irregular readings from the Lions--anything. Something.

"And then w-we almost lost you and Keith because I couldn't stop Kuron."