The Truants by A.E.W. Mason

Regular as Warrisden had declared the lives of the truants to be, on the night following the dance at Lady Millingham's there came a break in the monotony of their habits. For once in a way they did not leave the house in their search for light and colour as soon as they were free. They stayed on in their own sitting-room. But it seemed that they had nothing to speak about. Millie Stretton sat at the table, staring at the wall in front of her, moody and despairing. Tony Stretton leaned against the embrasure of the window, now and then glancing remorsefully at his wife, now and then looking angrily up to the ceiling where the heavy footsteps of a man treading up and down the room above sounded measured and unceasing.

Tony lifted a corner of the blind and looked out.