keep in mind that this is a 6-max table, so the action tends to be more aggressive than a normal mtt.

the villain has been "pushing his weight around".

sure, he could have aa or kk. but i would expect him to turn over ak or even much weaker hands such as 44 or 9Ts (with which he was attempting to push you off of your hand) a significant amount of the time. lags do this.