User blog comment:FairyRaven/Fairy Tail Chapter 438: The Seventh Guild Master, Review and Commentary/@comment-24546844-20150601172503/@comment-7418318-20150601193909

I always thought the same about Zeira from the moment she re-appeared after her death.

But I don't consider it rude of Yuriy that he told her. Sure he could have worded it a bit better, but I doubt that the hard impact of the words would have changed for Mavis.

The moment though I think was a good one. If Yuriy deduced that she created Zeira in her mind due to the years spent in solitude, he probably thought that nwo that she had friends, it was time for Mavis to let Zeira go and come back to reality fully. After all she had finally found some real, living friends to help her through the heartbreak Mavis might go through from learning the truth.