She can tell the truth & then tell Swara that now that Lakshya is not coming back she has to rethink her condition of not going back to MM, think about her relationship with Sanakar. Ragini has to move on & she will do it. But she doesn't want burden of being responsible for Swasan separation.
But no. Once again she hides the facts. Doesn't she know her sister Swara? She wouldn't go back to MM if she thinks Lakshya may come back? How about Sanskar. Poor guy is spending most of his time looking for his brother. Shouldn't he be told so that he can stop?
Right from being upset with Swalak to Pregnancy Ragini always likes to hide truth rather than coming clean