I'd shut down after the flop. Not a good flop for you. AK still beats you AJ out flopped you and Any hand with a spade has a huge draw (Not to mention any one w/ 2 spades in their hand has you pwned). The only hands that are going to call your flop bet are those w/ strong draws or made hands. All the weak stuff will fold. Sketchy situation to put yourself in.

I like your raise here preflop. Gives you a chance to outplay your opponent HU. Unfortunately you got as bad a flop as you could get w/o missing it completely (in fact, missing it completely might be better!)

I disagree w/ the suited connectors idea. I think the villian has AJ and hopes that you made a flush now that he has filled up...would explain his call of your raise too as noobs love this hand