Yes Kaka's anticipation was absolutely correct, due to Ani's "Divided life" Bon will ultimately get kidnapped. It will cost him alot as his wife will be in danger. I told you guys kidnapping will happen. Regarding Anirudh's choice, no matter what he will never ever choose Mini OVER Bondita. He can divide his time, he can get angry on Bondita, he can be stupid, he can be anything but NOT a cheater.
The main problem of Ani is that he is highly overconfident about BOTH Bondita n Saudamini so obviously this is not going to end well. No matter how many blunders Ani does I would never ever say Bon should be with BW for that. Both AniNdita deserves each other. A person like BW, neither Bondita deserves nor Anirudh.
Of course Anirudh's life is going to turn upside down with Bondita's kidnapping. Yes he will have to cry but it's going to be Anirudh only who will save Bondita. Because as a matter of fact Bondita has NO ONE to care for her except Anirudh and to some extent Kaka.
One more thing Kaka may have regressive mentality but I don't think Kaka will disown Bondita just because she has returned from Brothel. Kaka has immense affection for Bondita. Jaida se jaida he may ask her to perform some suddhi Puja or whatever but he will never reject her.