How does Pip react to driving by the prison with Estella and what does Pip’s reaction indicate about his image of Estella as a person?

When Estella questions Pip about the structure, he pretends he doesn't know what it actually is..... a prison. Pip's reaction illustrates the way in which Pip envisions Estella..... innocent and delicate.

"I thought of the beautiful young Estella, proud and refined, coming towards me, and I thought with absolute abhorrence of the contrast between the jail and her."