I really think after Emma touched the book and remembered and realized everything was true, and after the dust settled (WHICH TOOK A WHILE BECAUSE IT'S FUCKING STORYBROOKE AND WE CAN'T GO TEN HOURS WITHOUT A CRISIS CAN WE OF COURSE NOT) she put two and two together and came up with four. So on some level I believe she HAS to already realize what happened, she just doesn't like to think about Graham too hard at all.

So at this point? Mmm, I think she'd be upset and would probably do some angry shouting, but she's already kind of realized it and accepted it so she'd be able to move past it. She honestly blames herself a lot, too, because she didn't listen to Graham and didn't believe him.