Madeline was grateful that Lucy was offering to listen to her, "I am okay."
She didn't want Lucy to be worried as she knew that the vampiress had her own problems right now. Lucy was trying to keep her head up, and preparing herself for the words that would come to reach her once the news would spread about her dissolving her marriage with Samuel. Not to forget, Calhoun had broken the news to Lucy about her parents death.
She would have spoken to Lucy on how she was doing, but with her family here, she decided to bring up the matter later.
Lucy, who had no idea of what was going on with Madeline, said, "I can speak to brother Calhoun if you want," leaning closer as they walked, she said, "I know he has killed people before while drinking their blood."
Madeline stared at Lucy for the words she whispered, "I know some things, so I can help if you want." Madeline shook her head.