Well, Scot, it's both a form of dissociation and a somewhat enjoyable power of having an omniscient point of view.
In a way, writing is reliving. I don't want to go back there knowing only what the "first-person" knows.
I prefer being the narrator that can enter the character's mind, move freely through time, and make observations or formulate opinions that address both the characters and the readers.
Is that too weird?