complete leave stood at BETTEJANE GREER AND RUDY VALLEE SEPARATE Hollywood, March 7--(UP) -Bettejane Greer said today that although'"they still love each other very much" she and Lt. Rudy Vallee we're separati«£ because "something about the possessiveness of marriage came between us." The 19-year-old dark-haired actress and the 41-year-old coast guard band leader were married three months ago following a romance begun when he saw picture on a magazine cover. "We'll keep on going out together," the actress said "because we still love each other very much." Her attorney said the separation "might" lead to a divorce.