imo, fwiw, Misty knew he was yelling at her. She also knew that his anger was being refocused toward the dispatcher and LE for asking what he considered stupid questions, and LE's slowness at arriving. Since as the call progressed, and his anger moved away from her and toward others, she was able to conceive that he wasn't angry at her. She does tend to have the ability of being in the moment, and after the moment is over, what happened in the past is no longer relevant. Imo, this is also how she feels about the truth, ie, not relevant.
What is Misty hiding? She is hiding the truth, from LE, and from herself as well. Why? Because in her mind, it isn't relevant. The only thing that matters to her is what she wants at the moment. I know this is a harsh opinion, but it isn't that unusual for people her age to feel self involved, and to create whatever she thinks others want to hear in order to escape discomfort.
Most people as they age recognize the futility of this value system, and grow more aware of the needs of others. I hold out hope for her, at least for now.
I also recognize that many young women are easily convinced of things that aren't true, simply because of the emotional attachment to a man.
I don't know if Misty is involved in Haleigh's disappearance. Imo, the information we have in the 911 recordings, and in the interviews point toward her guilt, but we have yet to learn what she is guilty of. moo.
I didn't vote, that I can recall, b/c hiding the truth wasn't one of the options.