Sylvester Stallone was out on the links when he found out his mother, the eccentric Jackie Stallone, had died. “I was playing golf and someone called, ‘Your mother’s dead,’” Stallone told me. He didn’t go to the funeral. “No. .. Now you’re getting the scoop,” he said with a small chuckle. It is a startling admission from one of the most famous men in Hollywood, but then Stallone’s relationship with his flamboyant mom — a celebrity astrologer known for her extreme plastic surgery who died in September 2020 at age 98 — was anything but conventional. As Stallone, 80, has recalled, Jackie would tell him, “The only reason you’re here is because…