There is a world of difference between Sanchi and Shiv.
For Sanchi family is something that provides her with all the good things in life without expecting anything back from her.The love of family is a tool for her to manipulate them to get what she wants from them.The current suicide attempt is to weaken them further in order to make them run around till they get her favourite toy.
For Shiv family is something to be cherished and he considers it as a blessing.He bends backwards to please his family.He tolerates his mother's contempt for his wife because he loves her and can't bear to hurt her.He is willing to forego his judgement and accept Jagya as Sanchi's choice and he is willing to go to any lengths to pease his sister because he loves her.
For Sanchi - love is all about possession of her object of affection and satisfy her desires.Love is about posessing Jagya at any cost playing him with like he is some kind of doll who can be dressed and paraded around in front of her friends.His family is something that can be done away with.
Marriage is like playing with dolls and doll house.
For Shiv - love is all about sacrifice, putting the happiness of his loved one over his own.Love is bringing happiness in the person's life.Love is all about taking care of his beloved.For Shiv marriage is about sharing life and problems and standing by the partner.
Even in the present situation - Shiv is only concerned his sister and dealing with aftermath of the break up of engagement but Sanchi only thinks of herself and her wants.
There is a world of difference between Sanchi and Shiv even when he is at his worst.