Why does Gopi become a pushover when it comes to Rashi?

When Rashi needed money from the locker, she just called out Gopi's name, grabbed the keys from her and didn't even bother to respond when Gopi was asking her the reason. I do oppose Kokila's tyrannical behaviour and see nothing wrong with Rashi going out for lunch. But why does she disrespect Gopi, who is her jethani? Gopi, who was so smart with Radha, suddenly becomes innocent while dealing with Rashi.