Does Bonnie look a little sad that she’s leaving Kai?

Maybe I’ve been staring at it too long or something, but she doesn’t seem as happy as the show made her out to be when she got her revenge. I can see the obvious slight smirk, but towards the end she looks almost stoic. It could be the lighting, or my biased perception of things, but when I first watched this moment I remember her looking a lot more satisfied about leaving him.