Fortunately Yondu knew her well enough to know she couldn't NOT fight to defend others. He'd heard her talk about her time as a super-hero. So of course she was doing what she could to help people now--rest could happen when they were all safely on the train.

But it was also true that she was definitely not at her best. Not even close. Nodding at Yondu's words, and affirming "I'm staying close to people. I promise." She blinks when he starts putting the bracer on her arm. "Won't you need it?" Because she was worried about him, too.