she stays in their house because she loves Singhs more than Jagya loves them,and she is staying there ONLY out of love---..does Anandi love Singhs more than her own parents as well?
She came as Jagya's beendhni--she could not be anyone's bahu without being Jagya's wife, neither are they the only family she has.
If she wants to live in the family as "bahu"...that automatically means she wants to continue being Jagya's wife too (you cannot be a bahu without being a wife...and about being a daughter--does she not have her own parents?)
Nothing wrong about continuing the status of Jagya's wife...but then why be diplomatic about it, why beat around the bush, why speak larger than life, sacrificing kind of statements...
just be straightforward about it that "yes I want to continue being your wife AND the haveli bahu...but since I can't force you to stay with me...I will do whatever is in my capacity to still stick to it."...Its not a wrong stand in my opinion, and she is completely entitled to it...but her being more straightforward about it--makes her look more "real" to me.