My new manager is somewhat similiar, she changes emotions with the drop of a hat. She tries to act like she cares, but at the same time, yells when you're doing the wrong thing, even if it's just for a second.
Not only that, she loves to watch your every move, and stands in the middle of the grooming area, arms crossed, like she owns the place-plus she's in the way.
And she loves to treat me like a baby and downtalks me every chance she gets. And when I use big words, she looks at me like I'm not speaking English.....
/rant.
Good luck with finding new jobs, people <3