In “Oh, What Hard Luck Stories They All Hand Me”, Hanna has a flashback with Mona where they play a wishing game and Mona wishes for a stopwatch that could stop time so she could do whatever she wants and no one would know it was her. After this episode is when I started to re-watch from Season 1 and I believe I have discovered some mAjor clues to go along with the theories that Aria is A and possibly suffers from some sort of mental illness.
In s03Xe08 “Stolen Kisses” Aria is seen wearing the above dress in the opening scene. Look closely and you will see this dress, among other things, is covered in stopwatches! Also notice the pigs (Pigtunia reference?), lips and lightening bolts. (We all know Marlene King has hinted to us about the kisses and lightening bolts, so no big surprise there, but thought it was worth noting.)
But wait, it gets better. Two episodes prior, s03Xe06 “The Remains of the A”, Aria is seen wearing what appears to be a stopwatch necklace in her scene with Ezra (this is the best picture I could find, if you have a better one, please let me know!):
There are a lot of references to clocks in PLL, but the fact that Aria is specifically wearing stopwatches vs. regular clocks really stuck out to me.
This is my first PLL theory post and I would love to hear what all of you think of these clues. I have yet to see these specific clues mentioned anywhere, so feel free to utilize them to extrapolate on your own theories.