Molly O'Shea

So, noticed an odd situation going through the game. When the boys get back from Guarma and relocate to beavers hollow, Molly returns and admits to Dutch that she's the rat, and they promptly kill her. However, later on when Arthur confronts Agent Milton, Milton expresses that she never spoke a word, and that Micah was the rat.

Who is telling the truth? Who is the rat?

If it really is Micah, then why would Molly say she is, knowing full well it'll get her executed?

And moreover, how could Dutch believe a drunken lover immediately when he didn't trust is Right Hand Man when he accused someone else??

Not all of you but some of you on posts regarding sometimes the gang's failed Saint Denis bank robbery, some of you believe it was Molly or perhaps Micah that gave information to the Pinkertons so that's how they found Hosea. But the big difference is: Molly wasn't a rat, she only lied about it to get back at Dutch for ignoring her since Chapter 3, and Micah wasn't a rat (or maybe informant as I do believe he attempted to have the gang captured in Blackwater so he could live like a king) until after escaping Guarma.