Lily blinked, trying to determine whether Scorpius was serious or not. After a few seconds, she realized that he legitimately had forgotten his ex-girlfriend, and Lily couldn't help but start to laugh. She had gotten the impression that they had been together for some length of time, and she was shocked that Scorpius had moved so thoroughly on. Perhaps it was a miracle that he had managed to remember her name.
"Your ex...girl toy? Should I be impressed that you still remember my name after so many years?" Lily asked, arching an eyebrow in amusement.