Len's relieved that James knows himself well enough to be able to deflect Bucky's attention this well. He had tried to give him what he needed, but no more, but Bucky was still horrified and Len couldn't blame him

Well, he could. He liked James just the way he was.

"That's it, you've heard enough, Buckaroo," he said. "James, Mick, get out. He'll get healed up, and be back on duty and hopefully everything will go back to the way it was."