Mostly, their evil plans backfired on them. Perhaps this time this will happen too since Mihika is a more aggressive assertive kind of lady. Not sure what will happen, but I was thinking that this might me a perfect opportunity for Romi to make amends. I have Ishita and Romi scene in mind where Romi says he is really trying to do good but he is a failure and Ishita tells him respect girls always. This could be his chance to step up as a friend and protect Mihika and gain respect from mostly Raman, Mihika and Mihir.
Just for fun, I won't select the most obvious.
I think in the end Shagun will be hurt the most.. Since the man she has left everything for, lived with for years and finally now is engaged to be married to is eyeing another woman. And to make the drama worse for her, its Ishu's cousin.