Catherine feels threatened when she sees how close Ellen and Dot have gotten now that Ellen has moved back home.

When Ellen's furnishings arrive from L.A., Dot is so impressed with all of her fancy gadgets and high-style décor, that Catherine is left to wonder what place she will have in her mother's heart -- and her home -- now that Ellen has become the ""number one"" daughter. So, Catherine makes up a situation that she knows will attract their attention. (from CBS)