On the one hand, Tim was not all that surprised to see Batgirl here. If anything he was surprised that some member of the Bat family had not crossed his path sooner, but then he had been covering his tracks fairly well up until this point. Riding on top of the speeding car of a pair of bank robbers, and tricking the driver into a police barricade could not have been less subtle.
"Cassie", he said as she approached. His voice was even, his tone hard to place. He had missed her too, but he showed little outward sign.