3bet, Give Up, Get There, Now What?

[RivFader]

I'd call. His line just doesn't make any sense. What A could he have? AK would 4-bet pre, AJ and AQ probably stabs flop, Ax spades definetely bets it. And if he didn't stab the flop, would he float the turn ? Possibly but it's a long shot. Backdoor flush is possible but very unlikely.

Edit: Also in his eyes the A is a good card to bluff.