How has life disappointed her?

Curley's wife believed she could have been a movie star, but that her mother interfered and stole the letter she expected from the man she'd met at the Dance Palace. When she didn't get the letter, she settled for Curley and marriage. 

"She went on with her story quickly, before she could be interrupted. “’Nother time I met a guy, an’ he was in pitchers. Went out to the Riverside Dance Palace with him. He says he was gonna put me in the movies. Says I was a natural. Soon’s he got back to Hollywood he was gonna write to me about it.” She looked closely at Lennie to see whether she was impressing him. “I never got that letter,” she said. “I always thought my ol’ lady stole it. Well, I wasn’t gonna stay no place where I couldn’t get nowhere or make something of myself, an’ where they stole your letters, I ast her if she stole it, too, an’ she says no. So I married Curley. Met him out to the Riverside Dance Palace that same night.” She demanded, “You listenin’?”