it may also be that the two of them are immature, narcissistic drug abusers who live chaotic lives--together one minute, apart the next. The person who looked like the alpha dog in the drug videos was Misty, but neither of them appears to be emotionally stable. The weekend before Haleigh disappeared, Misty was on a drug and sex binge with other people, including other men. So where is this so-called "control" of Misty? If she does know something about Haleigh's disappearance that she isn't telling, what makes people so sure that Ron C knows what she's hiding? Why would anybody be surprised that they would get an impulsive divorce and still not be "done" with each other? they got married on impulse, after all.
See above. The Misty who was on the weekend drug and sex binge probably understands what's going on. I don't see what makes him worse than her. Both of them seem to have pretty low standards in terms of love relationships. It may well be that Ron has one view of the relationship and Misty another. Unless someone's got a transcript of the conversation they had about a divorce, then we are all just guessing.