I'd also like it if she and Kai got together. There's something about them, they look good together.
Lauren is happily married with cats.
I agree with your points about JB. I was just thinking that it wasn't a fluke when he did well with Lauren with his couples choice. As the weeks progressed, he became a confident, versatile dancer rather than just someone learning to dance, and looked entirely at ease in ballroom as well as Latin.
I wonder which dance the judges will.pick for him to improve on, and whether it will be one that he's done with Amy rather than Lauren.