So, she had a wedding. She's married. She has a husband, who is back at the flat.
-- Narrator (chapter 2)

Importance: The appearance of the husbands in Lauren's London flat is the novel's inciting event. The narrative conflict and tension rise in accordance with Lauren's attempts to make sense of her uncanny new circumstances. In this moment, she is beginning to understand the rules of her world, and thus to convey them to the reader.

But nothing about this marriage looks good.
-- Narrator (chapter 4)

Importance: Lauren's marriage to Kieran alters the stakes of her unfamiliar new circumstances. With the previous husbands, Lauren thinks that she will discard her partners if they are bad personality matches. With Kieran, however, she feels as if she is in danger, and therefore uses the attic to claim her agency in a new way. This marriage therefore alters the way that Lauren regards her marital dynamics.

My weird attic is magic. It's...
-- Lauren (chapter 7)