User blog comment:IamJakuhoRaikoben/Chapter 474: In the Moment of Complete Silence, Review./@comment-73.173.42.152-20160224130450/@comment-2214433-20160224130920

But they have never actually interacted, until after the 7 years timeskip, when Jellal, Ultear and Meredy appeared as Crime Sorciere for the first time.

Later, during GMG, Meredy was with Gray and Juvia, when the former got shot through by the mini dragons.

It is Juvia that actually fought with Meredy, and they later became friends.