Board Thread:Questions and Answers/@comment-24884876-20140817174456/@comment-25085317-20140818023905

Kai only appeared for "three" episodes out of which one was only a dream and cameo, so I won't like to see her as Ben's girlfriend (also, chronologically she was Ben's third crush so that doesn't make her special). Julie deserves to return and become Ben's girl friend again as she can also be useful for Ben in his missions because of Ship.