On topic... The child is heartbroken & in that state, expecting rational thinking from her is useless. Also ever since she has entered BH, weird things happened to her be it the princess treatment to a "guest" like her with gifts & all, or be it her teesa's strange behavior with her & in front of other people.
When the girl finally got her heart to meet her real mother, a relation which could be only hers & not related to her by her marriage to kundan, all she found was a woman who hated & rejected her like anything. So after facing the grand disappointment by her only real relation/relative of hers , she wants to go to the next set of relationships she knew as hers for yhe sense of belonging i.e., the jhalra family.
The reason for this is not Anandi but her said (& fed) "guest" status in BH.
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For Mangala, its Ok if she doesn't want to push the child towards Anandi... But atleast she must stop discouraging & hindering the same if the child wants to do something in that direction. The way she is using & misguiding the girl along with the BH people & Anandi is way too much to tolerate & is sickening.
If Mangala wants to keep the child for herself, then it must come from the child's wish on her own & Not because the child was/is facing cruelties of all worlds , with having only one person to turn to i.e., Mangala...especially when she considers herself to be as good as the real mother of the child.
But as per the episodes, the case wasn't like that earlier nor it is now as far as relationship as prime relatives is concerned.
As relatives...earlier the girl has the likes of harki-akheraj-kundan to prove Mangala's goodness.
Now Mangala brought (& bought as well) a fake biological mother , to project herself as great. & thereby destroying that small belief of the girl that her mother loves her but must have got same majboori to dump her. Now it doesn't matter if it also gave the feeling to the girl that she has a mother, siblings & family but she is hated , rejected & unwanted by them so much so that they left her to die in a garbage bin.
All because the girl knows Anandi is a good woman & she wanted her mother to be like anandi. & Mangala knowing the reality, wasn't able to stand that thought.
The girl still likes Anandi but after the great rejection, she wants more of relationships & people to say of her own & the guest status isn't able to give that to her.