This is a great continuation of the complicated interaction between Adrien English and Jake Riordan, and many of their personal conversations highlight some of the differences between their thought processes and how they see things, which shows that, on a personal level, they would have a long way to go if their relationship (if you can even call it that) would ever work out. At this point, though the romantic in me wants that to happen, I'm not sure how it possibly can. 
 As for the case, the case is interesting, and the ultimate explanation isn't what one would expect from the earlier clues.