Lillian Allen had a relationship with Rex Van de Kamp. Before Rex married Bree and had a family with her, he was involved with Lillian and had a secret child with her, Sam. Rex soon left and married Bree. From then on, Lillian Allen was forced to raise Sam in poverty. She received a letter from Rex, wanting to give Sam Allen a better life. She hid the letter but eventually Sam finds out. From then on, she is ignored by Sam.