Brand New City Lyrics Meaning

For me, this song is about a kind of compulsory beauty. like when she says, "If I gave up on being beautiful, I wouldn't know how to live
I should move to a whole new city and teach myself how to die"
I think it could also have something to do with perhaps emotional dependence on a person who thought she was beautiful, but that person is gone, and now she feels "ugly". just my daydreams hehe