[jrz1972]

I would have folded the turn.

First, when you have an pair and an A hits on the flop, you need to tread carefully. Auto-folding is bad, but ignoring the A is worse.

Second, you showed aggression PF, then you bet the flop, and you still got called in 3 spots. That should be a red flag. They're not ALL on flush draws.

Finally, CO suddenly emerged out of nowhere on the turn. Why? Probably because he was afraid you were about to check behind and didn't want to miss a bet on this street. That's pretty ominous.

I think it's very unlikely that you're ahead, and even if you are you could end up losing to anybody with a [img]/images/graemlins/heart.gif[/img].

It is not weak-tight to fold when you are obviously beaten and drawing super-thin.