Good, throwing that vase worked. Ren manages to get the door open since the scene is more or less done so he takes that chance to run through the door and leave the scene.

He keeps running even after he's back in Amande and in his normal clothes because he wants to get a distance from Crane just in case he doesn't change back right away. He didn't want a repeat of what happened with Hyde back in Londeva.

At least later they can make peace with each other.