I personally would have spent my 7bi's on a flop bet/fold. I think you put yourself in a bad position because you don't know if he raised you on the turn because you showed weakness after the A landed on the flop. I think you would have had a much better chance of him folding with a flop bet cuz then he'd be in the same position you put yourself in. May not be right but I think it would have been a much better play on the flop! I don't hate the fold as played though.