I think you might be right in that idea. One time I was out with my wife at a club show. She got a little too drunk and stumbling. I was walking her out of the club to pick up the metro and go home, when some chick stopped us (her) and whispered something in my wife's ear.
My wife responded "No, it's good. He's my husband."
When I asked my wife what was that about and she told me that she was "checking to make sure I knew you." My first response was "oh yeah that makes sense. Men suck." I was low-key glad they checked on my wife though. They had no way of knowing if "I'm one of the good ones."