What do you think of that theory?

Katherine made Caroline spy on Stefan and Elena,so they did pretend to be fighting...
But maybe Katherine send Caroline just for a distraction, to be free to fulfill her plan whatever that is...I don't think she is that stupid to believe that Stefan and Elena are fighting all of the sudden, because of her. She was observing them for a while before she showed up, so she knows how they act...just a theory..
what do you think?