I didn't read all ur post. So here my points
Imlie should leave Adi. Adi clearly told he didn't remember anything. Everyone accepting what malini told. Here imlie also trusting what malini told because imlie very well knew Malini can do anything now to separate Adilie. But both Adi and imlie knew nothing happened. Here problem is their communication gap and Adi's blind trust with malini. If adi says he trusts imlie and listen what she is telling then I'm damn sure imlie won't leave Adi. But here also Adi telling that he knew abt malini for 7 yrs and she won't do anything wrong makes imlie lose faith on Adi.
Then imlie and Adi not alone. They both love their families but T family also not accepting or trusting makes her heart breaking. So how many days she will fight alone? Adi should come out his didi bakthi and listen his wife otherwise story won't move forward.