Matthew had run away towards the direction where he and the general had fought before just in case the kids had caught up to him and reached the village, he must be the one who will stop them from going in closer towards the village and wasting Mutt's effort by getting themselves killed by the humans.
He himself is currently fighting against the urge to just throw his common sense away and just let his body take over and kill as many humans as possible, but Matthew was still able to think properly and what Mutt had said to him earlier had firmed his resolve to live however he wanted, and getting his revenge on the humans had taken his top priority spot in the first thing that he would do in order to enjoy his life to the fullest.
