Their sexual relationship takes an unconventional turn as Eva's role evolves, essentially from partners to a more maternal relationship as "In a way she treated me - as if I were a kid. Though I was nearly as old as she was." Eva realises Eric's immaturity and ignorance to the societal conventions of 1912 British society, which essentially forbids inter-class relationships. Therefore, she felt obliged to "refuse (Eric's stolen) money" as she did not belong to Eric's class and their relationship could not be public. This refusal of Eric's money contradicts the lower-class stereotype of immoral scavengers, which Mrs Birling propagates as she exclaims "as if a girl of that sort would ever refuse money".