JOYOUS J.LO DUMPS STICK-IN-MUD BEN!

JENNIFER LOPEZ plunged into a wild partying spree at New York Fashion Week without hubby Ben Affleck, who moped at their new L.A. mansion playing homebody dad with his three kids from his marriage to Jennifer Garner, spies tattle.

A pal dishes the 54-year-old hottie “has stopped acting so needy and started to enjoy the space she and Ben have. It’s opened her eyes as to how much fun she can have without him — especially as he’s such an awkward bore at these events.”