I hope it's ok to say this. Just say that maybe Kaine was discussing divorce with her before all this happened. I'm thinking that she wasn't the happiest person in the world, since she does seem to have changed so much in the past year. Having probably low self-esteem, because of all the attention she received for years for how she looked, she started to panic and decided to do something to make him change his mind and stay with her. She decided to hide Kyron to get her husband's attention, sympathy, etc. etc. etc. Maybe she's the person that took his glasses (?) and just let him out of the car to be on his own. Then she went back to see if she could find him (white truck on road) and she couldn't. Maybe it was some attention seeking act that went terribly out of control. So in essence, she did drop him off and wave good-bye to him, it just wasn't at the school. It's a terrible thought.