He actually 4-bets you: blind=1 bet, raise=2 bet, reraise=3 bet, rereraise=4 bet, and so on.

Yeah, once he sticks that in there you pretty well have to assume QQ+ against the average player, more likely KK+, so even if you hit you're screwed pretty often.

I just fold to the 4-bet against an unknown. He's making it pretty clear that he's ready to stick it all in.