My H was working away from home during the week, in a high pressure, exiting job, then coming home to me tired. I would be waiting for him, and of course I started to look very dull to him by comparison. He is now having an affair with a co-worker.
In retrospect it is all so drearily predictable, but I just never thought it could happen to me.
You cannot teach a man anything; you can only help him discover it in himself. Galileo Galilei