"Greg. I appreciate what you're trying to do. But you should leave. Now."

She gives him a firm push away from Peridot. This isn't his fight, so he shouldn't be involved in it.

Then, she gives Peridot her answer- in the form of ripping a hunk of stone from the ground and throwing it at her. "I told you, I'm in no mood for games. We both know you're not going to be swayed by anything I have to say, so let's just get this over with."