Of course he's not going to let go of QQ which is exactly why you need to re-raise the flop bigger, get your money in while:
a) You're ahead
b) You're likely to get paid off
What if flop comes AKx all hearts and he doesn't have the
, do you still get paid off? What if an Ace flops and he has AQ instead?
You are also giving him correct odds to draw to a set, he needs to call 150 to win ~3k so even though he is dominated preflop he should call. That means if he saw your hole cards, he would call. Basically instead of inducing him to make a mistake you are letting him play +EV poker against him.