User blog comment:B214/Chapter 504: Rift/@comment-27337151-20161001212600/@comment-1776824-20161002175838

@Shorya, yes, but Gray doesn't know that and he is in a mental state where he can't comprehend anything. To him, he is thinking that Natsu lied to him his whole life and still did all these things. He isn't taking the time to think things through because he isn't in a fit mental state. He is making irrational decisions because he is irrational. Again, you can hate the development all you'd like, but trying to look at things rationally when Gray isn't doesn't do anything, really.