The last time he'd held anyone like this had been her, and those moments were few and far between. It was rare he could come to her room at night and stay for long. But they'd fit together then, and they did now, too. It was familiar, even if it'd been years ago, far too long. It didn't feel that way; not when she was lying there beside him now.
He'd of course known how she'd felt; lost and distant, but he also knew he couldn't push it. She'd talk when she was ready, or she'd deal with it herself while knowing she had people who loved her who were there if she needed it. He was similar, and that was fine. But it didn't make him worry any less for her.
In the meantime, if she needed a mental and emotional break from what she was going through by spending time with him, then of course he'd be there in whatever capacity and however she needed it. "It's amazing," he murmured. He wouldn't say perfect. Clint needed to be there for that. But this, being there with her, was pretty damn incredible and he was unbelievably grateful he had the chance. Bucky pressed his lips to the top of her head and kept them there for a moment, breathing in slowly and holding her a little tighter.