curley's wide is lonley because she's a woman. candy is lonely because of his age. why is crooks lonely?

Crooks is lonely because of the colour of his skin. The men have segregated him and issolated him because of this.

the reason he was discriminated was because the of his skin, black people were seen as weak and slaves back in the 1930s. He had his own room because he wasn't allowed to mix with the 'white people'. He was isolated and left alone.