Ersaor is not sure if the Female Dragonborne wants to kiss him or eat him. Either way, he's not happy with the idea. We'll just have to see how things develop.
Hey, Zetork can talk! Actually, he could talk all along, he was just speaking Draconic. Since Taddin can understand Draconic, Zetork never felt the need to speak common. Besides, Dragonborne, being a noble and honorable race, tend to speak High Common rather then the trade language that most commoners speak.