She had to... Wait? WHAT? Where did she go? James bolted from his chair, leaving the ice pack and bloody towel behind. Thankfully Lily hadn't gotten far, and being all long-legged and athletic and all, he managed to catch up to her quickly.
"Lily, wait!" He called after her shortly before reaching her, grabbing her by the wrist. "What... What was that?" Obviously he knew what it was, he just wanted to know why.