No it wasn't. The girl they brought back at the end of Season Four was this girl named Christy Livingston, who was originally played by Ali Larter, who Pacey considered his "dream girl" in the beginning of Season Two, but she was played by a different actress toward the end of the series, and she seemed to feel like she had "lost her touch" when Pacey didn't remember her because he had fawned all over her years before.