It's Always Sunny In Philadelphia: This Theory About The Waitress Will Blow Your Mind
5. When Charlie Becomes "Smart" He No Longer Likes The Waitress
Jumping back to The Waitress for a moment. Throughout the show, there have been times that Charlie has questioned his feelings towards the supposed "love of his life", The Waitress.
In season 9 episode 8, titled Flowers for Charlie (which is one of Charlie Day's most hilarious performances) he is selected for an intelligence experiment. He is to take a pill every day which, in turn, will supposedly increase his brain power sevenfold. In the end, Charlie perceives himself to be smarter and even experiences severe side effects but it turns out that the pill was nothing more than a placebo.
During his time on the medication, Charlie becomes increasingly self-aware. He no longer wishes to engage in "foolish" games with Frank, he stops hanging out with The Gang and he begins to rethink his obsession with The Waitress.
Sure, the pill turns out to be a complete dud and turns Charlie into a total narcissist, but there's no denying that he shows signs of cognitive clarity.
This episode is one of the theory's main turning points as, in a moment of rare self-realisation, he discovers he doesn't actually want to be with The Waitress. Well, THAT Waitress anyway.