I think we can make a pretty decent case for 3betting this pre-flop....we really don't want to be taking this flop multi-way particulaly and by flating we ate giving everyone insane pot odda to come along also....the co doesn't have to have any sort of hand here to make this raise.....
I think post flop we are fine really, plenty of worse a's villan can be doing this with we are just pretty unlucky he spikes the turn.....
3bet big preflop, if he calls you might pay him as you think you are chopping or he has a weaker A after all is lowest micros... I don't blame you but I would have think that he had 44 not A5 then.