Thanks for sharing your experience. I am thinking it over. I had a terrible night of sleep last night. So did my W. In fact, she suspects (knows?) that I snooped on her. We've been married 22 years and we know each other well. She knew I was in a depressed mood yesterday and she asked me again and again. She was able to correlate my mood with her message.
She immediately changed her FB password and deleted the message. I know because I tried to snoop later that night.