Mrs. Erdahl has been largely in the background, which makes her appearance—especially at Benji’s—all the more surprising. She shows an apparently genuine appreciation for Benji, for his friendship with Kevin over the years, and for his strong family. She’s more perceptive than she’s let on previously, and much more tender-hearted than her husband. It’s not clear what the purpose of her visit is—if she expects Benji to tell her what Kevin has done, or if she suspects that Kevin’s and Benji’s friendship won’t last much longer. Perhaps it’s just an appeal to Benji to get Kevin to do the right thing.