Ah, yeah - Aly Michalka works as Molly for sure.  I've just felt, though, that there are probably lots of gals that would work as Molly.  Only a few of the characters seem to have "obvious" castings to me.  Jared Padalecki as Harry had crossed my mind before

I've thought of this before too, I think he could do great, but he might be too 'pretty' for it.   Though I sometimes think Harry is a pretty boy if we weren't reading everything from his POV.

Sadly, he and Aly are too close in age to cast them both!

Harry thinks she knows: "You can't make me your monster. Doesn't work. And you know it."

I think it's simpler than that.  The words were not lies, the implication was.  As Harry said, while the fae cannot lie, they can deceive.   When Harry was pushing back at Mab, he never denied that she could force an action.   He just threatened her with results would be the opposite of what she wanted.  He was negotiating the fine print now that Uriel pointed out that he wasn't an automaton, nor was it what she wanted.