Originally Posted by
SanityOrMadness
Life Story of the Flash. Iris (who the book was written in-character as) mentioned that Barry got more and more nervous about using the name Flash in case Jay showed up and asked him WTF he was doing stealing his name, to the point he stopped referring to himself as the Flash in public. That lasted until the post-Crisis version of Flash of Two Worlds (which involved Keystone having been phased out of normal reality and everyone inside put into stasis by a trio of villains, including the Shade, and forgotten about by everyone left behind), when they met for the first time, and teamed up to return Keystone to normal.
[Curiously, Barry knew Jay's ID from the comics he read even in this version, but Jay didn't have a public ID, did he?]