She is newly married to Curley.
We never know her name - she is merely Curley's 'property' with no individual identity. She is young, pretty, wears attractive clothes and curls her hair. She seems flirtatious and is always hanging around the bunk-house. She is lonely - there are no other women to talk to and Curley is not really interested in her. "What kinda harm am I doin' to you? Seems like they ain't none of them cares how I gotta live. I tell you I ain't used to livin' like this. I coulda made somethin' of myself." She doesn't like Curley - she tells Lennie that she only married him when she didn't receive a letter she'd been promised to get into Hollywood. She is naïve
Main themes in 'Of Mice and Men' - foreshadowed by the reference to Burns' mouse - are loneliness and dreams. They interlock: people who are lonely have most need of dreams to help them through. She is married to a man she doesn't love and who doesn't love her. There are no other women on the ranch and she has nothing to do. She tries to befriend the men by hanging round the bunkhouse. She dreams of being a movie star. Her hopes were raised by a man who claimed he would take her to Hollywood, but when she didn't receive a letter from him, she married Curley.