I doubt she confesses on the terrace, because in the new add they show that he pulls her back and keeps her hand on his chest..or rather his heart..and shes like ""mein..""- which is when i feel, she is still trying to confess, you can see in both their eyes, one wants to hear it, the other wants to say it..but can't i feel on the terrace..while armi is holding ridz, they hear from far muskaan and rahul arguing, coz there was no patient muskaan needed to show, and when they hear them arguing, armi leaves her, and ridz and armaan both sorta walk off the terrace, while rahul muskaan are cuming closer to the terrace..and muskaan will open her mouth and ask what were u doing here..and stuff..but ridz will just run off or something maybe...and rahul will then have the hint that somethings going on for sure.
i could be wrong..but i dont think she will confess, im sure she will this week, but not on the terrace..