When Mary's brother Lewis comes to town on business, she decides to set him up on a date with Rose. The next day when Rose won't give Mary any details about the date, they get in to an argument where Rose finally admits that she thinks Mary's brother is ""self-centered"" and ""egotistical."" They stop speaking. Meanwhile, Lewis asks Sandra out on a date, and Mary fears that Sandra may be her future sister-in-law. When Mary spies on the ending of Sandra's and Lewis' date, and notices that all he talks about is himself and his job, she realizes where Rose is coming from. Sandra leaves Lewis on the stoop, dissatisfied with the date, and the next day Mary apoligizes and she and Rose make-up. (thetvdb.com)