User blog comment:Firegod00/In Which There Is No God (Fairy Tail 421: Wendy and Chellia)/@comment-3030647-20150224111054/@comment-3030647-20150224203815

The thing is, in the end, she's a member of Fairy Tail. She's indebted to them. At the same time, she's also indebted to Lamia Scale but she's got more to fight for with Fairy Tail. I see no issue in her returning.