She doesn't have the words necessary to explain herself properly, and she probably has a whole lot of reasons that go into her gut's calculations here, but -
She tears the fish open and digs out the bones. When she has enough of them, she arranges the ribs in little x shapes scattered across the floor, little constellations of fish bones that match the star positions from Yahi. When she's done, she stands and names her star systems - Aldara, Kessria, Tlax, Fen, Ni Nare, Makath, Hhof, Kunakt'kits, Mihi, Ologro, others, more names than he can possibly be expected to remember.
"Aldara, Liars. Kessria, Liars. Tlax, Liars. Fen, Liars. Liars, Liars, Liars."
She gestures to herself. "Alteri."
She stomps on the bones that make up Aldara. There's a crunch beneath her boot. She adds her own rather theatrical explosion sound. "No Liars, Aldara." And then she travels around to the other star systems, gets ready to stomp on them, and pauses, thinking. Four or five times, her foot comes down and she makes her explosion sound. The other worlds remain in suspense.
She travels to one particular star, no more noteworthy than the others, and names it Earth. "Imrainai, Earth. Liars, Liars, Liars." And she gets ready to stomp on Earth, and then thinks better of it, and then decides to stomp again, and then thinks better of it, and then decides to stomp again, and then -
"Imrainai afraid Alteri. Alteri - " she makes her explosion sound " - no Earth, no Earth Liars. But Alteri no - " she may be having a little too much fun with the explosion sound " - Earth Liars happy."
She travels back to the marble pedestal and gazes sadly at the remains of Meraiyu. It's sad that Meraiyu is gone, it doesn't stop being sad just because other planets have been destroyed. She pats the representation gently. "Meraiyu no Liars. No sad, no happy, no angry, no afraid. Saikirei..."
The explosion is perhaps a bit more somber this time. It is pointless. No one will hear it. She shrugs.