Doesn't your lack of aggression here make his range much wider for the hands he could have?

I mean he raised a standard 3 times and then you just called (not the normal play with AK) the villian raised on the flop because he just smooth called his raise preflop, you haven't represented the hand that you have, that is why the villian is raising your bet.

I push but maybe I am just newb that doesn't know what he is doing