Leah was very protective of her little brother and didn't like Seth being put in those situations but when Leah said imprint, Jacob glared, "Clearwater your on patrols." Sam said looking to Leah, "Tonight."
Everyone in the pack knew that no one spoke of the imprint between Ness and Jake. She was supposed to be a normal teenager, not inclined to be with Jacob. Even the thought of that stung, she liked him for him, not because she had to, right?
Jacob was hoping Renesmee hadn't heard the word imprint but knowing she had vampire hearing, the chances were slim.