Reason for Pakhi to continue staying in CN.
Her parents would have at some point dragged her off to start living her own life instead of being stuck in limbo.
Samrat was brought it at a point where Pakhi lost all her hopes on separating Virat and Sai (mahabaleshwar trip).
When Samrat returned, everyone was careful around him, now that everything is fine between Jeeva Shiva, no one cares much. Samrat by giving Pakhi a chance has dug his own grave unknowingly. He doesn't know she is one mental case and thought she will really move on. But she is only lusting on Virat and even openly asking Samrat why Virat is rejecting her.
I wonder if he tells everyone the truth, would family even believe him. They will only blame him further, question his own narrow thoughts and sympathize with Patralekha. He can see how much control she has on kaku. I can understand his silence in front of family now.