She graduated from Tufts University and moved to New Orleans because one of her favourite writers, Ellen Gilchrist, was from there and Wallington thought that she would soak up some inspiration from living there too.
Instead, she spent her nights bartending and her days writing really bad poetry and collecting rejection slips.
After a stint in New York as personal assistant to an actor, she moved to Mexico to do research for a screenplay she was writing.
Wallington was thrilled when she was asked to write an episode for the final season of the show and in the meantime worked on her novel, Pop!
When Sex and the City ended, she moved to Los Angeles and wrote for Veronica Mars and Courting Alex.