Any gratitude Peridot has for Zan's kind words gets immediately subsumed by her irritation at being patted on the head for the second time in about as many days. She flinches with each pat and makes an awful goblin noise through gritted teeth. Demeaning!

Also, soon as Zan withdraws his hand and she's in the clear, she also glances over at strange to make sure he's not laughing at her. He didn't actually start this trend, but she's choosing to blame him.