what are the differences between alison and helena?

Both Alison and Helena come from upper class families yet live in working class England. They differ in their situations. Helena is not attached to a working class man. She observes fist hand the abuse her friend Alison goes through from her abusive husband. Where Alison, for much of the story, is at the mercy of her huband Jimmy, Helina attempts to gently convince Alison to leave. Helen is not weighd down by the baggage that her friend Alison is under. Helena is very much the strong moral compass of the play.