Ehh...I couldn't find a better name for Zexeaus(I'll just call him Zexy,NOT to be confused with Zexion)...I mean really! Zex,Lex...anyway...Zexy is a clone of course of Zexion, but somehow Lexeaus's dna became part of him...

He doesn't use a lexicon/book/whatever you call Zexion's weapon, but he uses the same sword as Lexy, but he does have the same abilities as Zexion and despite he looks kinda wimpy :D he is really strong....

Yes, he has a huge crush on Natara, and natara likes him back, but he doesn't want to look so soft on her in front of others, so, alot of times he just winks at her and they flirt a bit with eachother...