The mention of fighting Sapphira and synchronizing sends a wave of fear across Sekhmet's face. Downcast, she mutters under her breath. "It won't help." Even the idea of meeting her mother again terrifies her. She doesn't want to think about fighting her.
Geneva may recall how chaotic Sekhmet's mind was from when they last synchronized. She has so many thoughts swirling around in there, it would be hard for her to clear her mind of them. "I, uh, guess I can try that." Thinking of nothing, she means.