Roxas really didn't want to kill the... person... if he could help it, but he couldn't have him/her/it following him as soon as the spell wore off either. In any case, he was already attacking, having begun before seeing that the spell took hold. But he let up before the spell wore off and and took off toward Sora and Jagannatha, hoping he wasn't too late to help Sora.

Focused though he was on reaching the two, he was alert to the possibility of being followed. On top of that, he was slowed by the presence of a number of Heartless...