User blog comment:LastationLover5000/Fairy Tail 324 - In Which I AM SO CONFUSED, MAKE SOME SENSE ALREADY (The One That Closed The Gates)/@comment-25316424-20130322222325/@comment-4666155-20130322222505

It makes sense that it's Natsu, out of everyone there, he's closest to Lucy, so he'd have the most reaction from this.