Miss Betsey's experiences have clearly soured her on marriage (and men) in general, but her assessment of Clara, though harsh, is basically the same as the novel's—namely, that Clara wasn't mature enough to marry for the right reasons. Furthermore, her disapproval of marrying for love alone becomes increasingly relevant as the novel goes on, and David begins considering marriage himself. Likewise, her belief that Mr. Murdstone likely influenced David's development negatively echoes comments David himself has made (although Murdstone did not, as Miss Betsey suggests here, cause David to become immoral or untrustworthy).