Villain was around 30/10 in a few hands. Don't know how to handle this situation.
Fold. Villain has a flush draw or a pair. Even you must be ahead, fold. If the Ace, T or 9 of spades comes on the turn this would be a difficult spot.
I'd call here, and reevaluate on the turn.
I'd call a 1/2pot bet. I'd fold to that bet.