A number of Flair's 747,000 Twitter followers offered their condolences.
Barlow worked with the former wrestler as Fifi the Maid, assisting him on his Flair for the Gold talk show and escorting him to the ring before fights.
He engineered an app appropriately named "Sniffer." It is a nod to the (ahem) ease in which dogs often interact.
It's a social discovery app to meet dog lovers nearby for whatever you want: friends, date with someone who loves dogs the way you do.
It will be Flair's fifth marriage, following his last divorce in 2012.
Time for a Wrestling show now...😊 #roanoke #virginia #virginiaisforlovers #historic #weekend #myman #thenatureboy #wrestling A post shared by Wendy (Fi Fi) Barlow (@thewonderouswendy) on She was at the centre of a feud between the Tennessee-born star and Rick Rude during the 1993 WCW International World Heavyweight Championship at Fall Brawl.