Ok after reading the updates I feel that Dadi and Mausi have planned to set the relationship between Jai and Bani straight. Dadi directly cannot do anything becoz she knows Jai would be upset as according to him she has seen what pains he went through. And Dadi knows better than to reason with Jai. And she also knows Jigs is there to spoil everything. So who better than Mausi who was not present when all the drama was going on. So I really think that its all a plan between the two oldies.
There were circumstances like lakshmi murti falling, dadi slipping off the stairs etc. These situations helped them. Why else do you think Mausi would make Jai and Bani put the chain for each other sort of getting them married in the real sense. Or make sure they slept on one bed and so on.. I agree with doe , BAni could have easily slept on the floor after Mausi went away. She would not come looking at midnight.
Infact I feel they should have shown that. Mausi coming in to ask something silly just to make sure what the sleeping arrangements are and Jai and bani scrambling to set everything as normal. That would have been funny.
Its going to be interesting if infact its really the way I am thinking and to see what they do once this ex-flame makes her appearance. And the truth will be known only when MAusi leaves.