I never took it for a real expression. People tease and one way of doing it is by using a really common expression from a class of people that most aren’t part of. Like “you know” or “like” for valley girls. And one, at least in my piece of the world, teases the ones one cares about. So I took it as affection, rather than affectation.
Understood and I’m not posting anything else on it. Thanks mairdie.