Willy tells Linda that is fearful that she may be disappointed in him. He is no longer the salesman he once was, he doesn't provide for the family the way he once did, and he certainly isn't the father or husband he used to be. This is a particularly vulnerable side of Willy that Linda is able to see, and Linda is probably the only person that Willy unveils this side of his personality to. Linda accepts Willy for who he is.