It has nothing to do with being married.
The problem here is that woman FAILS to understand what it means to be at work or at lunch. How would you feel if someone keeps calling you when you are trying to have a bite? Not so pleasant. How does being married teach you that? Do you run for the phone when someone calls you at dinner time? No, most people don’t.
You and your husband can talk for hours doesn’t mean situation is same for everybody. People have different jobs, those jobs have different rules, etc.