That State Senator Kenneth P. LaValle, who represents the very gay-friendly South Fork, as well as the rest of eastern Long Island, has refused to vote yes on a same-sex marriage bill so far this week has, unfortunately, not been a surprise, even if it is deeply disappointing. With the Senate locked in a 31-to-31 stalemate over the issue, Mr. LaValle could have played the hero with a reversal to vote in favor of the measure. That, however, did not appear to be likely as the battle raged on in Albany.