“Jenny From the Block” isn’t putting up with any funny business. Jennifer Lopez showed off her sassy side when she snapped at a reporter asking about rampantly spreading rumors the Marry Me actress and her husband, Ben Affleck, are headed toward a divorce. The “On the Floor” singer was quick to shut down a question about the state of her marriage during a panel in Mexico City for her forthcoming film Atlas on Wednesday, May 22. “You know better than that,” Lopez told the reporter with a straight, stoic facial expression before letting out a sly smile, as seen in an Instagram video shared by Sp…