In ns4, during the tournament of elements, there were two girls. Chamille and Tox. During most fights, Tox never left Cham’s side.
(Also Neuro and Griffin) They always were together, even when everyone was against them. Remember Cham vs Lloyd? Everyone turned to the ninja, leaving Chamille by herself. Guess who stayed? Tox. Also Shade, but he’s Tox’s best friend, you’ll see in a sec.
So they were together even then. And after Chamille lost, look how upset Tox was, and how concerned Shade was about her. He looked between Tox, and the pit Cham just had fallen into with brief concern.
After that, when the camera focus was Kai and Skylor, you could see Tox crying and Shade comforting her in the background.
Note: THIS SCREENSHOT WAS HARD AF TO GET SO SORRY IF YOU CAN’T TELL
After that, when they reunited, she still never left her side.
But, after everything, when they were flying on their dregons, guess who Tox waved to?