You would be kind of scared though having spent your whole life thinking you knew what was going to happen to realising you know nothing that is about to happen
At this point he is an old man, he is probably financially stable and has already found a wife, has kids etc... He wouldn't have too much to worry about, but I get your point it would be life changing to find out your life had been partly a lie
One third horribly Cruel.
One third... Chilling.