It seems like, in Ye Hai Mohabbatein, Ishita truth will come infront in a go. Not because, story has moved very fast, but because in the serial such person has got to know, who can go anything and can shock everyone. Yes, Ashok is knowing that Ishita is alive and this is happened because of Mahika's stupidity. Mahika was talking to Ishita without seeing right and left and Ashok was listening everything. Ashok was drunk a lot and maybe Mahika can trap him anyhow. Here, Alia adn Aadi scene is different. The way plotting is been done, it is confirmed that that they will definitely have affair. Right now they are fighting because of Shravan.