okay more thoughts about mona:  

1. we should have know it was her (like 100% sure) when we heard her say “previously on pretty little liars” at the beginning of this episode.

2. i’m still gonna stand by what i said before. i think that mona didn’t get involved until after alison disappeared. and what doesn’t make sense to me is that mona wanted hanna all to herself, but a brought the liars closer than ever before.