Why did Steinbeck have Crooks talk to Lennie about Loneliness?

In part 4 of OMAM, Crooks talks to Lennie about his past life. Crooks explains how he was treated and what happened in his past life to Lennie, although "[He] struggles to understand" (71). Crooks has been separated by segregation laws all his life and explains to Lennie sometimes someone is not there to comfort you. Lennie doesn't comprehend what Crooks is saying because George has always comforted him. Steinbeck chooses to have this conversation with Lennie because he only understands concrete statements and when he is faced with a if, then statement he doesn't know what to do. Lennie tries to understand the topic of loneliness with Crooks. But when Crooks explains his past life to he thinks George is gone forever. Crooks explains to Lennie, "' Maybe you can see now. You got George. You know he's goin' to comeback. S;pose you didn't have nobody'" (72). 

What are you thoughts on conversation that took place with Lennie and Crooks?🤔