You know he's real, but you cannot hurt him
Cait Sith/Reeve. Reeve is real but you cannot hurt him because he always uses Cait Sith which is just a stuffed "pet". In Dirge of Cerberus you even see his pet running around while Reeve is talking to you. If is would not be for the "you know he's real" sentence which can mean everything I would only say "Cait Sith", but this way both since many people use "Cait Sith" for "Reeve" as well.
Before you meet him you spy on him
In the Honey Bee Inn you can find him, Cait Sith, when Shinra cheats his wife again.
Who loves making honey?
What honey's like making money?
Also references of the Honey Bee Manor and maybe you even mean that he earns much money as a ShinRa employee.
Foreshadow.
It was not real, even though it was a fitting joke of Cloud.A dream, or is it real?
Of course I am waiting for PalomPorom's answer but I will post a riddle here and in case he call for another round, you can answer it:
You might have never found me
well, no wonder, that big one mostly finds thee.
The likes of you won't differ my brother and me.
How to beat, how to catch,
hurry up with your guess or I am gone
since you are no match.