User blog comment:Miskos3/Fairy Tail Episode 235: Tartaros arc Prologue: Fairies vs. the Underworld/@comment-25111584-20150530160025/@comment-5894890-20150530190214

Yeah I agree with you on Gajeel's mission, that scene happened quite suddenly in the manga. Perhaps a scene of him looking a bit distraught and maybe him providing a bit of insight on the situation could help.