By throwing Jai out of the house, she is just handing him to Pia. I mean where will vunerable Jai go? He has no support, apart from Peabrain who will be more than happy to take him... she will somehow do it unless Jai returns to the Walia house.
I don't really see the logic here in terms of the story moving on from here.. if Bani would leave the house that would be understandable as she would return post leap or something. Masi shouldn't have thrown him out of the house, taking in mind that it is his house not legally but he owns the business and has a right to it, if she wanted to punish him she shoudl have left teh house herself and maybe taken Bani with her.