Who's Bandini?

Now, is Santu the Bandini of DM or her biological son, Vishal? It looks like that she is the Bandini of Vishal. Vishal is dictating the terms with complete authority. Everyone is helpless. CV of Bandini has left no stone unturned to completely ruined DM's and Santu's characters. Poor DM and Santu deserve better treatment. Poisonous mind of Vishal indicates that Megha is still around. How child of 9/10yrs of age can preserve the hatred towards his biological parents even after 16 long years. Santu's mamta is at stake as her dharm for her husband. Lord Krishna has already indicated this situation to her. That time Santu told him that she will follow dhram. Now, what is dharm? Is dhram her duty towards her husband or her mamta for her son? Please friends help me.