Guys,
I think this whole RK separation is happening, because he did not let her finish her mannat 😉 😆.
Remember, a few episodes back Kasturi took a mannat of going to the Shiv mandir bare foot so hers and R's rishta will be good and that she will not loose her love. Well, our hero comes there and picks her up in his arms and takes her to the temple 😡. Who the hell asked him to do that????
Not only was it not part of etiquette to do something like that in a temple, he did not allow her to complete her vow!!! I think that's why this whole problem started. 😆.