[smokingrobot]

i think the turn is a fine place to 3bet BB, why just call?

My first instinct is villain is semi-bluffing the spade flush draw.

If this is true - You're not making any money on the river, and you are allowing him to fire another bluff to further make things difficult.

Hands you're behind are 7x, which i say is unlikely, even mathematically, but possible, if so, such is life, especially if its 57, or if x = bigger kicker like A.

Next, your behind 36 or 68. Is it possible for BB to have this? hell yeah.

Next pocket 5's and 4's. Another possiblity.

No raise pre-flop could very likely be something like that right?

With no reads, i dont know. I'd 3-bet and fold to further agression. I realize 3-betting basically puts you all in, and maybe other people disagree with this, but i think you have to 3-bet a full 36 but can get away with something between 28-32.

With no reads, i'd be less inclined to push as well.