It`s easy to say when we see that bb had aa best is to fold
.
I would say this is very player dependant.If you think he s good reg very
hard to find hand beside aa he is reraising 2 players.Co bet 50% and your
call(which was good)may look like weak plays to some players and they
may raise top2 or bottom set here.Very important is you were almost 150bb
deep which is another argument that bb is not reraising light here.