Manhattan was the city that Tessa Altman lived in for the first fifteen years of her life, before her father George forced her to move to Chatswin, because he found a unopened box of condoms in her room. 

In season 1, Tessa disliked living in Chatswin so much, that she tried several times to change her father's mind and to move back to Manhattan. 

Tessa spent a summer in Manhattan with her grandmother, at the end of season 1, and she comes back to Chatswin at the beginning of season 2. During season 2, she went to her grandmother's place for thanksgiving, and to meet her mother.