Theresa Maria Eugenia Winthrop (née Lopez-Fitzgerald) (born July 3, 1982) is a fictional character on NBC/DirectTV soap opera Passions. Theresa Maria Eugenia Lopez-Fitzgerald was born in Harmony, New England on July 3, 1982. She is the third of five children and the elder daughter born to Martin Fitzgerald (b. Apr. 6, 1947) and Pilar Lopez-Fitzgerald (b. Aug. 13, 1950). She has four siblings: two older brothers Antonio Lopez-Fitzgerald (b. May 5, 1970) and Luis Lopez-Fitzgerald (b. Feb. 29, 1972) and a younger brother Miguel Lopez-Fitzgerald (b. Dec. 14, 1984) and a younger sister Paloma Lopez-Fitzgerald (b. Nov. 30, 1986). While only a toddler, her father Martin had abandoned the family to run away to Mexico with Katherine Barrett, although the reason for his disappearance wasn't revealed until much later on. With her mother Pilar working two jobs, the young Theresa was raised primarily by her eldest brother, Antonio. After some time after their father disappeared, Antonio also disappeared and ran away from home as well. When Theresa was only a young teenager, at which time her older brother Luis then helped Pilar care for Theresa and her younger brother Miguel. During her teenage years, Theresa developed a deep, strong and intense infatuation with Ethan Crane, the oldest son of her mother's employer, Ivy Crane and Julian Crane. Although she had not yet met him, she became convinced that they were destined and fated for each other and would someday marry. Her best friend since childhood and confidant is Whitney Russell.