On the turn there's straights, flush, trips, boats possible with holdings that the bb could easily have and have played that way. When all is said and done you have 'only' 2 pair on a super-scary board. OK, you pretty much pot comitted yourself on the flop...then again: why not shove instead of reraise the flop? there's really not many good cards for you on the turn/river to play this while being fairly confident that your AA are still good.
Any A, K, Q, J, T, 9 or any diamond either kills your action or has you in dire straits of having the second best hand. There's also no card that improves your hand (an ace on the turn or river would be downright horrible in this spot)
Shove flop and you might get called by an OESD or a flush draw and go in ahead (even if you're up against two pair you stand a decent chance of making a better 2 pair)