User blog comment:FairyRaven/Fairy Tail Chapter 363: The Stories That Demons Read, Review and Commentary/@comment-70.233.138.240-20131206142453/@comment-7418318-20131207102749

He said he didn't know their identities (which would naturally exclude him from being one) even though he told them about Etherion and Face.

Furthermore if he really was one of the three, surely he would have told them to make sure that FT would keep protecting him after what just happened.