It’s because gabby was trying to get Elizabeth’s jury vote. She was being such a hypocrite for accusing Angelina of doing it when she was legit doing the same thing
If you rewatch the tribal gabby goes from crying to smirking as Elizabeth leaves. Gabby was also the one who convinced Elizabeth to expose the fractures of the Goliaths, while her own target stayed the same. She legitimately used Elizabeth as a martyr to improve her game Lol