User blog comment:Miskos3/Fairy Tail 535: The Greatest Power, Review/@comment-7418318-20170512131719/@comment-172.58.21.10-20170512225428

Order honestly doesn't matter here. I mean, when Wendy and Happy were captured by Brain in the Oracion Seis arc, Natsu said Wendy's name first. His relationship with Happy was obviously more prominent at the time.