Bucky's throat tightened again, but he managed a smile. "I get that. Haven't been sleeping great myself, lately." His eyes felt hot, and he blinked a few times. Tentatively, he offered his hand, reaching out a bit.
"Yeah. Bucky Barnes," he confirmed. "I know it's Steve, but I didn't catch the rest..?"
If he knew too much about him, he might just run Steve off again.