User blog comment:IamJakuhoRaikoben/Chapter 368: The Third Seal, Review./@comment-213.89.161.219-20140211162258

maybe the theory is that Silver is an ALternate Gray revived as a Demon and want to abandone his former life. then again he should have expected natsu to break in, and he reacted suprised that it WAS Natsu who WAS the FIRST PERSON or just an irony.