i like betting out in this flop first of all.. since your opponent probably has to have an A or something strong to call you.. so hes coming at that point anyways. maybe he thinks you've got AQ, and hes holding AK.

im probably calling the 4-bet on the turn.. check/call the river if you're really afraid of top set that much.

also.. what are your reads? did he seem awakened by his hand that much?