Ginny could feel the tips of her ears turn pink when he used the nickname. Too familiar, but not familiar enough. He'd probably notice, and get a little bit of satisfaction out of it. She didn't mind.
"A little ribbing never hurt anyone," Ginny grinned. "And people might have a go at your for being a traitor if you didn't. I wouldn't want to get you into trouble," she added, half-turning to thank one of the waitresses as their butterbeers were put down in front of them. She took a healthy swig, suddenly starving. Surely there food couldn't be too far away.