Old Candy is not impressed by Curley's wife. He states that she is "purty," but finds her a woman of loose morals--"Well, she got the eye," he observes, and states that he has seen the young woman look at Carlson and Slim seductively. He says that he thinks Curley has "married a tart." Later, at the end of the novella, he lashes out at her, calling her names, envisioning her as an Eve, a temptress who has "ruined everything."
In Chapter One, Candy shows George and Lennie around, and he describes the people that they will encounter on the ranch. After the boss talks with George and Lennie, Curley, the son of the boss has come by; so it is not long before Candy tells the two men about Curley's wife. He also intimates that Curley's wife is a young and tender bride when he alludes to Curley's one gloved hand.
Then, in Chapter Five, after the discovery of the dead body of Curley's wife, Candy stands over her and lashes out,
"You...tramp.... You done it, di'n't you" I s'pose you're glad. Ever'body knowed you'd mess things up. You wasn't no good. You ain't no good now, you lousy tart."