Fear
The others didn't know how to interrupt the two of them. They were on their own little bubble and it seemed inappropriate to suddenly interrupt them. But they actually didn't need to wait that long for Eureka and Raven faced them after a few moments.
"Do you have your answers now?" Eureka asked calmly.
The others could only nod in unison. Her change in attitude was truly amazing, she could shift her emotions the way she wanted to.
"So you really don't have to worry, I really am not trying to kill my body by training this technique, though the outcome was still far from how I wanted it to be. And so irritation built up inside me."
They could only sigh in relief, of course they still remember what Raven told them in the past. That, that one time when Eureka was acting different from the usual when she just returned after disappearing for two years was actually because of her temporarily injuring her soul.