Terezi all but shrieks when Kurloz comes around the barrier, albeit with some laughter thrown in. Her only option is to duck around the other end and bolt. Which she does, right back to Signless. If it wasn't clear before that there's no 'sides' anymore, it should be when Terezi ducks behind Signless and grabs the back of his clothing to hold him in front of her.

She is apparently not above using him as a living shield.