User blog comment:IamJakuhoRaikoben/Chapter 390: The Story of a Boy, Review./@comment-4449950-20140628040909/@comment-85.221.190.231-20140628062304

Actually this situation could be made into Juvia getting less Gray-dependent. It is possible that her magic is better match for Keith's than anyone else's and that defeating Keith is crucial for preventing Face activation. She would then have to make a decision NOT to go to Gray's side, but focus on Keith. That would be different from usual stuff. Doesn't seem very probable though :/