Who was Shirley's best friend on the show?

Shirley's best friend on the show was her childhood friend Laverne DeFazio. Laverne was the perfect foil to Shirley's uptight and perfectionist nature. The two would often provide comedic relief to the many dramas that arose throughout the show. They were always there for each other through thick and thin, and their friendship was a big part of the show. Laverne often provided a much-needed dose of reality to Shirley's sometimes unrealistic expectations of the world. Together, they were the perfect comedic duo, providing the show with the perfect balance of silliness and reality.