what is an alternative interpretation of the quote you mustnt try to build a wall between us and that girl
. The “wall” might also represent emotional denial, suggesting Sheila is more emotionally honest than her parents,
also "that girl" is supporting the idea that sheila will go back to her old capatilisitic mindset after the inspector is gone as sje is dehumanazing eva and is vague this supports the qoute later in the play "not now i need to think" when gerald asks if sheila wants the ring back