He wouldn't tell her. He couldn't.
But somehow, she knew anyway.
So every night, she would put Jack to bed, reading to him, tucking him in, singing him a song. Then she would move about the house - reading, watching TV, cleaning. On nights he had to work late, he didn't know how she filled the time, but she was always awake when came in, ready to give him a smile.
And once he had gone to bed, she would go into her room, and she would sing. It was soft, and he couldn't always make out the words. But he could hear her. And the sound would push the heavy thoughts out of his head, and he would fall asleep.
He couldn't tell her.
But on the nights he was out of town...he didn't sleep at all.