User blog comment:RoyallyBella/Official Season 6 discussion blog/@comment-25300957-20140826022403/@comment-25300957-20140830113101

it was all rivens falt,beacuse riven want to become specialists leader and he is trainig all time,he is not talking even musa ,musa become upset for riven's actions.when musa losts her voice,riven blames himself ,because he even cann't protect musa and he leaves specialists,musa said to riven that they will be good friends.

after that riven doesn't appear in other episodes