And about this they had a few sharp whispered words.
"You're never going to shut him out ?" she expostulated angrily, beneath her breath.
"I'm not going to leave Daisy down here with that man perhaps walking in any minute." "Mr.Sleuth won't hurt Daisy, bless you! Much more likely to hurt me," and she gave a half sob.
Bunting stared at her.

"What do you mean ?" he said roughly.
"Come upstairs and tell me what you mean." And then, in what had been the lodger's sitting-room, Mrs.Bunting told her husband exactly what it was that had happened.
He listened in heavy silence.
"So you see," she said at last, "you see, Bunting, that 'twas me that was right after all.

The lodger was never responsible for his actions.

I never thought he was, for my part." And Bunting stared at her ruminatingly.

"Depends on what you call responsible--" he began argumentatively.
But she would have none of that.