I Love Koki, but I am completely stumped today. I thought when Ahem was being persistent about the movie, she was purposely denying to see how far he would go, but I am not sure.
Now I liked the precap, because here is where we can see if she has a problem with Gohem or she has problem with them helping Raji.
There could be much more than what is shown.
1. Koki is upset because Gohem is helping Raji when their own relationship is not where it should be. She obviously sees Ahem's hesitency and awkwardness, and the way he pulls away from Gopi in public.
2. She has problem with Gohem helping Raji, because she is more aware than anyone else, what Rashi has done to keep Gohem apart, and Raji never offered to help with Gohem, so why should Gohem help Raji.
My POV only.