Pretty Little Liars -- Mona Is A
Unless they pull off a shocking twist, I really think all the clues in the winter season are leading to Mona being revealed to A. The following is my reasons for believing that Mona is A:
Mona was skinny-dipping in the lake when Hanna was attacked:
When Lucas and Hanna were out on the lake in a rowboat, Mona and Noel were skinny-dipping in the lake. Someone appeared to turn the boat over Hanna was in. It was right after this incident that Mona and Noel broke-up. Or did they?
Mona and Hanna had a fight before Hanna had a nasty trick played on her in the girls' bathroom:
Mona was angry at Hanna for not listening to her pour her heart out about her break-up with Noel. Right after that while Hanna was in the stall, someone put a boat representing the boat Hanna had been in and flooded the girls' bathroom.
When Spencer was following a lead on A, Mona showed up:
She just happened to show up and was all upset over Noel and Spencer gave her a supporting talk that made Mona feel better.
At the end of the episode where Mona broke-up with Noel, A was seen cutting up photos of the Pills and their boyfriends and burning them:
Maybe it was just a coincidence but if Mona is A, it would make that scene make a lot of sense.
Could Jenna know that Mona is A?
Jenna was in the bathroom stall when Hanna told Mona she would take her out to cheer her up over her break-up with Noel and heard where Hanna planned to take Mona and at what time. Jenna just happened to be there when they arrived on a date with Noel. Otherwise why would Jenna care to stick it to Mona?
Mona hacked into the school computer files:
A few hours later someone stole Caleb's computer and put hacked files from the schools computer on his computer. Just a coincidence?
Mona claimed to be getting texts from A:
But she could have easily sent them to herself when she was with Hanna. Like Spencer said, I think it was, why would A text Mona? The Pills were part of Alison's mean girl clique and that seems to be why they and Alison were targeted by A. We only have Mona's word that she went to the store and admitted she stole the necklace and got community service, since no one has seen her actually performing community service. By claiming to have stood up to A she's gotten the Pills to trust her and they now consider her one of them.
A was seen spying on Ashley:
Hanna told the other Pills in front of Mona that Ashley was getting on to A. Yes, A is all knowing, but it's another coincidence of Mona being in the right place at the right time to be A. Mona even came up with a plan to get Ashley off the trail of A. So wouldn't A being spying on Ashley to see if her plan worked? Only to discover it hadn't.
At some point all these coincidences stop being coincidences and start becoming proof that Mona is indeed A.