About a year ago I read a book, I don’t know if the book was new then, but it might help if you know that is is not brand new.
The premise of the story is that the rich people now live in the tops of the buildings of the city, with bridges in between the buildings so that they never have to go to the ground and see all the suffering of the poor people. The ground area is called ‘the deeps’ or ‘the depths’ I don’t really remember, and it is where all the poor people live.
I think the protagonist's name is Ariana or something similar, and the book begins with her waking up with no memories. She is rich and part of one of the most powerful families in the city. Her mom tells her that she overdosed on a drug and it took away her memories. Her mom also tells her that she is going to be married to a boy (that is supposedly the love of her life but she doesn’t remember). The boy is from the other most powerful family in the city and their union is going to end the feud between the two families.
But to Ariana (I’m just going to pretend that’s her name) something isn’t right. She goes down into the deeps and meets a person named Daniel (I think) and the talk for a long time.
I don’t remember how but eventually she regains her memories and figured out that Daniel was the love of her life all along. I think they run away together at the end.