In the summer finale, Paige totally freaked out when Emily told her that she had stayed the night at Alison's.
We were all a little shocked by her outburst!
Poor Em tried to defend herself...
Alison had just found out that she was pregnant -- there was no way Emily could have left her alone!
But Paige didn't want to hear ANY of it:
She was totally furious!
But if we think back to Season 3, it was really no wonder Paige was so angry!
We learned that Alison used to call Paige 'Pigskin'...
Which is just HORRIBLE.
And CeCe told Spencer about the HORRENDOUS prank Alison pulled on Paige.
She pretended to write a letter to her from Emily, which said she had feelings for her and asked Paige if she felt the same. When Paige dropped her reply off, Alison stole it and used it to blackmail her!
Later on, Paige told Emily how much Alison had hurt her.
She said that she "knew her well enough to hate her guts."
Could this long-standing hatred of Alison and jealousy over Emily be enough to push Paige over the edge? Could Paige actually be A.D.?
Let us know what you think in the comments below!