Talk:Mona Vanderwaal/@comment-35244979-20180408020408/@comment-26917793-20180419090021

^ She did stalk and threaten them for almost a year, and tried to kill a couple of them. It's not exactly easy to ever trust someone like that, but they did give her a chance to gain their trust, their only condition was that she played with an open hand and told them exactly what she knew and what she was up to, but it didn't take Mona long to make up her own plans and not tell the others anything, like faking her death and framing Ali for instance.

If it was one thing the four main liars never accepted, it was being kept in the dark and people going rogue instead of working as a team. They didn't accept it with Mona, and they didn't accept it with Ali. Ali trying to do stuff her own way (the kidnapping story, having Noel make it look like A was breaking into Hanna's house for example) without talking to the others was the reason they started pushing Ali away after she came back and then believed she was a killer. If Mona wanted to be trusted by the liars, she could've just done what they asked and played with open cards, but I guess full disclosure isn't part of Mona's vocabulary.