I don’t know if it has been mentioned before or it just seems too over thought but here it is.
I re-watched pretty little liars and I got to season 4 episode 18, it’s the episode when the liars realised they had to get the dentist files, and if they got the file they would more likely get the name of who A is.
Hanna managed to get the file but she got sedated and treated by A and A put the note in Hanna’s teeth and took the file, and at the very end of the episode it shows A shredding the paper so I paused it and seen this.
It says C Cavanaugh which made me think, what if Charles isn’t Charles DiLaurentis but instead Charles Cavanaugh and that Jason remembers him not as an imaginary friend as he was told to believe but in fact was his brother but the Cavanaugh’s adopted him or maybe he was a always a Cavanaugh and was adopted by the DiLaurentis family!
I may just be thinking too much into it but it really did make me think…