Folding pre is definately standard. I'm a little confused by your description of villain though. I don't think you described the villain that 4bet(?). If he's really crazy and you think he'll stack off with worse aces, shoving pre is a better line, but without that read just muck it preflop. Fold flop aswell.

I also wouldn't get in the habit of typing stuff like "hmmm" in the middle of a hand, but that might just be me.