[Mempho]

Without reading the other replies, I say call 2 cold and raise the SB's turn bet on a non-heart turn. The SB's 3-bet reeks of a big draw, but it could also be an indication of a small 2 pair, made str8, or a set....he could also be bumping A6 here. That said, I put him on a draw as the most likely thing and try to push UTG+1 out on the turn. UTG+1 is only 16.8 which makes it very possible that he floated a medium pair or, much less likely, suited heart broadway.