She says "why should I carry the responsibility of the this family's honor?" SERIOUSLY? I can't understand how she thinks it is not HER responsibility that she got pregnant and is ruining the family honor single handily!
She is making Simi's life worse on purpose and for not gain of her own. At least with Anita she has something to gain in the end. But Neetu is just spiteful of her own sister's happiness. đĄ