Snooki was heavily pregnant and lived in her own house during filming, and she explained to People that "everyone was still going out and staying up late and I just wanted to go to bed at 8 o'clock. I didn't want to do everything that everyone else was doing."
Snooki has traded in partying for low-key movie nights and other mom-appropriate activities, so it's no surprise that the Jersey Shore lifestyle is no longer a fit for her.
Maybe the show's ending is a blessing in disguise for the new, responsible Snooki. We hope she still managed to have some fun during her last season!