i think Bani is trying to save her husband (and his money) of maybe Ranveer is blackmailing her with something and that's why she asked for a divorce
i don't think Bani is a bad person, she doesn't care about money and materialism at all, she just wants to see everybody happy, even though she's angry with Jai, she still wouldn't harm him
i think she found out about sexy sanyasi's plans and has gone for an action against it
let us wait and see
greetings from a cold and wet Netherlands