Celes saw that Vine brought Spruce back at the guild, and was very worried as she looked at Reshiram and heard what he said about another brother. She just.. didn't listen too much. She was too worried about Spruce right now... too worried about what happen to him... She looks at the group.
"Please take care of this... I... I have to check on Spruce.... I have to go see him and make sure he is ok... I can't just leave his side." she says as she goes and get her badge out and use it, going to teleport back to the guild and go find Spruce. She didn't want to leave his side... she didn't want him to die at all... she wanted to help as much as she could for this. At least his brother arrived... but she was still worried sick about him.