Sanjana track - Random thoughts

Hello everyone!

I know all of us are boggled by this whole mystery of Sanjana and I've been wondering about it too. So here's my take on who Sanjana is and what the story is:

Sanjana is Mihir's sister and probably had a crush on Raman too. Now, I don't remember if they've ever mentioned in the show, but suppose Raman and Shagun had a love marriage. So when Raman was 'seeing' Shagun, being the shy guy he was back then, maybe he used indirect ways to always be around her or whatever. Sanjana probably misunderstood him and thought he was in love with her, only to have her illusion broken whenever Raman proposed to Shagun. Sanjana might have thrown a fit and tried to create a rift between them or claim that Raman had cheated her and what not. Eventually when the truth came out, mihir would have cut ties with her. Maybe she has mental issues too and has been in treatment so long only to surface now (remember how she told poornima Prakash and Ishita that she was having emotional ups and downs?) Her return now I see as a sochi samjhi saazish to get back into Raman's life. It still doesn't explain Poornima Prakash but somehow, keeping Ekta's track record in mind, this seemed like the most likely scenario.

What say?