I think in end Sanyo realized that Prithvi is not wrong. As she had earlier realized that Prithvi may had become king of Delhi because of some cirumstances, not from his own wish or greed, but only problem she had was ki Prithvi tried killing Jai Chand.
Now she watched from her own eyes that Prithvi refused to fight with Jai Chand. She know if Prithvi want then he can fight alone with so many people. Prithvi is not scared from Jai Chand and he not accepted the challenge of Jai Chand and even did not allow his friends to rescue him or fight with Jai Chand.
I think Sanyo was shocked to see all this and she shouted stop that ! She said harsh dialogues just to save Prithvi...as Prithvi was not using his sword but Jai Chand wanted to kill him any how.
She said this but from her face, there was no anger for Prithvi but tears. The way she looked at him before going along with Jai Chand.
Now I hope soon she will get to know about actual story of what had happened at that time.
I like the way it was shown...otherwise was expecting ki Sanyo after getting know reality of Karan may slap Prithvi but thank God any thing like did not happen.