Shubh and Anubha may have some connection between them/working together, though it looks like they have no feelings for each other/hate each other now.
The way Anubha was worried for Shubh getting injured/hospitalized and the way both trying to get closer to Adi and Kavya, all of a sudden/just a day after they broke off, it looks like they are together and on a mission against Adi and Kavya.
Have to wait and see how their story unfolds, especially Anubha's character, which looks like she is not required in the show at all currently, as Shubh is good enough to create misunderstanding/differences between Adi and Kavya, why was Anubha required to do the same?