Exhaustion clearly on his face making her heart twitch in empathy . " You want to take a break ? " Unable to look into the other 's eyes because it took too much effort and she was fully exhausted . " No .

Question: What may have caused her heart to twitch in empathy ?
Answer: Her friend would n't look her in the eyes .She was overworking herself .She was watching someone overworking themselves .She could n't take a break with him