The Mets lost 8-3 to the Braves last night, dropping the rubber game of a three-game set and pushing them seven-and-a-half games behind Atlanta and even further away from any fantasies of contending down the stretch. It was a helpful game to sum frustrations Mets fans have had with their team for the last couple of months, because they fell behind early and committed three errors in succession in the sixth inning, in appropriately farcical fashion. The Mets have one more series in Atlanta at the end of August, before Bobby Cox leaves the “rivalry” entirely, so Chipper Jones will have one more chance to say good-bye by knocking the Mets around like crazy. (He homered again last night.) The only piece of good news: The team is looking to extend Jose Reyes’s contract this summer. That guy is still only 27 years old. That’s good news. But everything else right now is bad. Hence, the flailing and the trip to Philadelphia this weekend that might take care of this once and for all.