How does Philippa Gregory use imagery in The Virgin's Lover?

Imagery:

"Every time I pluck at it with jealousy it breaks out afresh. I will make myself forgive him, I will make myself forgive her."

“Dinner was a meal where good manners overlaid discomfort.”

“It’s not his friendship I miss,’ Elizabeth said bluntly. ‘It’s him. The very person of him. His presence. I want his shadow on my wall, I want the smell of him. I can’t eat without him, I can’t do the business of the realm. I can’t read a book without wanting his opinion, I can’t hear a tune without wanting to sing it to him.”