I think she is their to break up Aastha and Shlok for sure, because everything she is doing is causing problems between the two of them. I kind of dislike how Shlok was madly in-love with Swaati, and still is. It kind of ruins the look of his and Aastha's relationship. It's odd to see him being so in-love with another girl, and it doesn't make his and Aastha's love look pure, because of Shlok.
I have a feeling that Swaati and Shlok broke up before their marriage, and that's why theirs always this girl walking around in a wedding outfit. I think theirs a big twist coming up, and that's why we haven't been getting any spoilers! I hope it's BIG! I just really want Aditi to go away soon, she's getting so annoying. Hope they reveal the twist by next week or I'm going to get bored of this serial.