User blog comment:FairyRaven/Fairy Tail Chapter 425: Sabertooth X792, Review and Commentary/@comment-5303512-20150323141838/@comment-1359322-20150323142557

I don't really view it the same way as you. For me i'll probably say its because Lucy is disappointed that Natsu won't tell her the real reason to his actions. Natsu keeps asking Lucy to trust him, yet Natsu doesn't seem to show the same trust back.